Home / 10,929.47-15,077.54-6,450.17

Finding the Fourth Proportional to 10,929.47, 15,077.54 and 6,450.17

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Solution

The fourth proportional to 10,929.47, 15,077.54 and 6,450.17 is: 8,898.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,929.47 : 15,077.54 = 6,450.17 : x
  2. Step 2: Convert to fraction form
    10,929.47/15,077.54 = 6,450.17/x
  3. Step 3: Cross multiply
    10,929.47x = 15,077.54 × 6,450.17
  4. Step 4: Simplify right side
    10,929.47x = 97,252,636.92
  5. Step 5: Solve for x
    x = 97,252,636.92/10,929.47
  6. Step 6: Final answer
    x = 8,898.21

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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.