Home / 13,507.50-20,283.66-8,346.18

Finding the Fourth Proportional to 13,507.50, 20,283.66 and 8,346.18

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Solution

The fourth proportional to 13,507.50, 20,283.66 and 8,346.18 is: 12,533.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507.50 : 20,283.66 = 8,346.18 : x
  2. Step 2: Convert to fraction form
    13,507.50/20,283.66 = 8,346.18/x
  3. Step 3: Cross multiply
    13,507.50x = 20,283.66 × 8,346.18
  4. Step 4: Simplify right side
    13,507.50x = 169,291,077.42
  5. Step 5: Solve for x
    x = 169,291,077.42/13,507.50
  6. Step 6: Final answer
    x = 12,533.12

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Double scale
Find fourth proportional to 13,508.50, 20,285.16 and 8,347.18
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.