Home / 9,387,793.76-12,957,176.95-5,717,920.28

Finding the Fourth Proportional to 9,387,793.76, 12,957,176.95 and 5,717,920.28

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Solution

The fourth proportional to 9,387,793.76, 12,957,176.95 and 5,717,920.28 is: 7,891,961.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,387,793.76 : 12,957,176.95 = 5,717,920.28 : x
  2. Step 2: Convert to fraction form
    9,387,793.76/12,957,176.95 = 5,717,920.28/x
  3. Step 3: Cross multiply
    9,387,793.76x = 12,957,176.95 × 5,717,920.28
  4. Step 4: Simplify right side
    9,387,793.76x = 74,088,104,774,872.86
  5. Step 5: Solve for x
    x = 74,088,104,774,872.86/9,387,793.76
  6. Step 6: Final answer
    x = 7,891,961.28

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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.