Home / 14,930.07-20,603.05-8,215.71

Finding the Fourth Proportional to 14,930.07, 20,603.05 and 8,215.71

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Solution

The fourth proportional to 14,930.07, 20,603.05 and 8,215.71 is: 11,337.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,930.07 : 20,603.05 = 8,215.71 : x
  2. Step 2: Convert to fraction form
    14,930.07/20,603.05 = 8,215.71/x
  3. Step 3: Cross multiply
    14,930.07x = 20,603.05 × 8,215.71
  4. Step 4: Simplify right side
    14,930.07x = 169,268,663.38
  5. Step 5: Solve for x
    x = 169,268,663.38/14,930.07
  6. Step 6: Final answer
    x = 11,337.43

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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.