Home / 15,851.34-21,854.12-13,637.00

Finding the Fourth Proportional to 15,851.34, 21,854.12 and 13,637.00

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Solution

The fourth proportional to 15,851.34, 21,854.12 and 13,637.00 is: 18,801.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,851.34 : 21,854.12 = 13,637.00 : x
  2. Step 2: Convert to fraction form
    15,851.34/21,854.12 = 13,637.00/x
  3. Step 3: Cross multiply
    15,851.34x = 21,854.12 × 13,637.00
  4. Step 4: Simplify right side
    15,851.34x = 298,024,723.17
  5. Step 5: Solve for x
    x = 298,024,723.17/15,851.34
  6. Step 6: Final answer
    x = 18,801.23

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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.