Home / 10,721.16-16,081.65-2,929.95

Finding the Fourth Proportional to 10,721.16, 16,081.65 and 2,929.95

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Solution

The fourth proportional to 10,721.16, 16,081.65 and 2,929.95 is: 4,394.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.16 : 16,081.65 = 2,929.95 : x
  2. Step 2: Convert to fraction form
    10,721.16/16,081.65 = 2,929.95/x
  3. Step 3: Cross multiply
    10,721.16x = 16,081.65 × 2,929.95
  4. Step 4: Simplify right side
    10,721.16x = 47,118,430.42
  5. Step 5: Solve for x
    x = 47,118,430.42/10,721.16
  6. Step 6: Final answer
    x = 4,394.90

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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.