Home / 13,555.17-18,689.27-10,372.41

Finding the Fourth Proportional to 13,555.17, 18,689.27 and 10,372.41

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Solution

The fourth proportional to 13,555.17, 18,689.27 and 10,372.41 is: 14,301.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.17 : 18,689.27 = 10,372.41 : x
  2. Step 2: Convert to fraction form
    13,555.17/18,689.27 = 10,372.41/x
  3. Step 3: Cross multiply
    13,555.17x = 18,689.27 × 10,372.41
  4. Step 4: Simplify right side
    13,555.17x = 193,852,719.18
  5. Step 5: Solve for x
    x = 193,852,719.18/13,555.17
  6. Step 6: Final answer
    x = 14,301.02

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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.