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Finding the Fourth Proportional to 15,139.51, 22,703.51 and 6,925.75

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Solution

The fourth proportional to 15,139.51, 22,703.51 and 6,925.75 is: 10,385.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,139.51 : 22,703.51 = 6,925.75 : x
  2. Step 2: Convert to fraction form
    15,139.51/22,703.51 = 6,925.75/x
  3. Step 3: Cross multiply
    15,139.51x = 22,703.51 × 6,925.75
  4. Step 4: Simplify right side
    15,139.51x = 157,238,799.75
  5. Step 5: Solve for x
    x = 157,238,799.75/15,139.51
  6. Step 6: Final answer
    x = 10,385.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.