Home / 10,921,543.12-15,074,727.60-6,339,340.72

Finding the Fourth Proportional to 10,921,543.12, 15,074,727.60 and 6,339,340.72

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Solution

The fourth proportional to 10,921,543.12, 15,074,727.60 and 6,339,340.72 is: 8,750,030.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921,543.12 : 15,074,727.60 = 6,339,340.72 : x
  2. Step 2: Convert to fraction form
    10,921,543.12/15,074,727.60 = 6,339,340.72/x
  3. Step 3: Cross multiply
    10,921,543.12x = 15,074,727.60 × 6,339,340.72
  4. Step 4: Simplify right side
    10,921,543.12x = 95,563,834,517,587.86
  5. Step 5: Solve for x
    x = 95,563,834,517,587.86/10,921,543.12
  6. Step 6: Final answer
    x = 8,750,030.42

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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.