Home / 13,217.02-18,238.03-7,248.63

Finding the Fourth Proportional to 13,217.02, 18,238.03 and 7,248.63

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Solution

The fourth proportional to 13,217.02, 18,238.03 and 7,248.63 is: 10,002.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.02 : 18,238.03 = 7,248.63 : x
  2. Step 2: Convert to fraction form
    13,217.02/18,238.03 = 7,248.63/x
  3. Step 3: Cross multiply
    13,217.02x = 18,238.03 × 7,248.63
  4. Step 4: Simplify right side
    13,217.02x = 132,200,781.67
  5. Step 5: Solve for x
    x = 132,200,781.67/13,217.02
  6. Step 6: Final answer
    x = 10,002.32

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Half scale
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Double scale
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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.