Home / 10,818.12-14,929.20-6,343.14

Finding the Fourth Proportional to 10,818.12, 14,929.20 and 6,343.14

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Solution

The fourth proportional to 10,818.12, 14,929.20 and 6,343.14 is: 8,753.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,818.12 : 14,929.20 = 6,343.14 : x
  2. Step 2: Convert to fraction form
    10,818.12/14,929.20 = 6,343.14/x
  3. Step 3: Cross multiply
    10,818.12x = 14,929.20 × 6,343.14
  4. Step 4: Simplify right side
    10,818.12x = 94,698,005.69
  5. Step 5: Solve for x
    x = 94,698,005.69/10,818.12
  6. Step 6: Final answer
    x = 8,753.65

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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.