Home / 18,931.91-26,125.88-10,434.38

Finding the Fourth Proportional to 18,931.91, 26,125.88 and 10,434.38

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Solution

The fourth proportional to 18,931.91, 26,125.88 and 10,434.38 is: 14,399.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,931.91 : 26,125.88 = 10,434.38 : x
  2. Step 2: Convert to fraction form
    18,931.91/26,125.88 = 10,434.38/x
  3. Step 3: Cross multiply
    18,931.91x = 26,125.88 × 10,434.38
  4. Step 4: Simplify right side
    18,931.91x = 272,607,176.95
  5. Step 5: Solve for x
    x = 272,607,176.95/18,931.91
  6. Step 6: Final answer
    x = 14,399.35

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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.