Home / 15,139.67-22,709.63-5,278.93

Finding the Fourth Proportional to 15,139.67, 22,709.63 and 5,278.93

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Solution

The fourth proportional to 15,139.67, 22,709.63 and 5,278.93 is: 7,918.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,139.67 : 22,709.63 = 5,278.93 : x
  2. Step 2: Convert to fraction form
    15,139.67/22,709.63 = 5,278.93/x
  3. Step 3: Cross multiply
    15,139.67x = 22,709.63 × 5,278.93
  4. Step 4: Simplify right side
    15,139.67x = 119,882,547.10
  5. Step 5: Solve for x
    x = 119,882,547.10/15,139.67
  6. Step 6: Final answer
    x = 7,918.44

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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.