Home / 13,711.38-18,903.41-10,888.10

Finding the Fourth Proportional to 13,711.38, 18,903.41 and 10,888.10

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Solution

The fourth proportional to 13,711.38, 18,903.41 and 10,888.10 is: 15,011.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,711.38 : 18,903.41 = 10,888.10 : x
  2. Step 2: Convert to fraction form
    13,711.38/18,903.41 = 10,888.10/x
  3. Step 3: Cross multiply
    13,711.38x = 18,903.41 × 10,888.10
  4. Step 4: Simplify right side
    13,711.38x = 205,822,140.35
  5. Step 5: Solve for x
    x = 205,822,140.35/13,711.38
  6. Step 6: Final answer
    x = 15,011.04

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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.