Home / 13,712.78-18,904.24-9,732.44

Finding the Fourth Proportional to 13,712.78, 18,904.24 and 9,732.44

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Solution

The fourth proportional to 13,712.78, 18,904.24 and 9,732.44 is: 13,417.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.78 : 18,904.24 = 9,732.44 : x
  2. Step 2: Convert to fraction form
    13,712.78/18,904.24 = 9,732.44/x
  3. Step 3: Cross multiply
    13,712.78x = 18,904.24 × 9,732.44
  4. Step 4: Simplify right side
    13,712.78x = 183,984,381.55
  5. Step 5: Solve for x
    x = 183,984,381.55/13,712.78
  6. Step 6: Final answer
    x = 13,417.00

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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.