Home / 15,216.39-20,996.53-8,501.18

Finding the Fourth Proportional to 15,216.39, 20,996.53 and 8,501.18

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Solution

The fourth proportional to 15,216.39, 20,996.53 and 8,501.18 is: 11,730.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216.39 : 20,996.53 = 8,501.18 : x
  2. Step 2: Convert to fraction form
    15,216.39/20,996.53 = 8,501.18/x
  3. Step 3: Cross multiply
    15,216.39x = 20,996.53 × 8,501.18
  4. Step 4: Simplify right side
    15,216.39x = 178,495,238.40
  5. Step 5: Solve for x
    x = 178,495,238.40/15,216.39
  6. Step 6: Final answer
    x = 11,730.46

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.