Home / 15,772.17-21,768.10-9,484.55

Finding the Fourth Proportional to 15,772.17, 21,768.10 and 9,484.55

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Solution

The fourth proportional to 15,772.17, 21,768.10 and 9,484.55 is: 13,090.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,772.17 : 21,768.10 = 9,484.55 : x
  2. Step 2: Convert to fraction form
    15,772.17/21,768.10 = 9,484.55/x
  3. Step 3: Cross multiply
    15,772.17x = 21,768.10 × 9,484.55
  4. Step 4: Simplify right side
    15,772.17x = 206,460,500.30
  5. Step 5: Solve for x
    x = 206,460,500.30/15,772.17
  6. Step 6: Final answer
    x = 13,090.18

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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.