Home / 10,488.13-15,721.17-4,643.35

Finding the Fourth Proportional to 10,488.13, 15,721.17 and 4,643.35

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Solution

The fourth proportional to 10,488.13, 15,721.17 and 4,643.35 is: 6,960.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,488.13 : 15,721.17 = 4,643.35 : x
  2. Step 2: Convert to fraction form
    10,488.13/15,721.17 = 4,643.35/x
  3. Step 3: Cross multiply
    10,488.13x = 15,721.17 × 4,643.35
  4. Step 4: Simplify right side
    10,488.13x = 72,998,894.72
  5. Step 5: Solve for x
    x = 72,998,894.72/10,488.13
  6. Step 6: Final answer
    x = 6,960.14

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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.