Home / 9,121,086.90-12,587,247.18-4,991,476.86

Finding the Fourth Proportional to 9,121,086.90, 12,587,247.18 and 4,991,476.86

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Solution

The fourth proportional to 9,121,086.90, 12,587,247.18 and 4,991,476.86 is: 6,888,318.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121,086.90 : 12,587,247.18 = 4,991,476.86 : x
  2. Step 2: Convert to fraction form
    9,121,086.90/12,587,247.18 = 4,991,476.86/x
  3. Step 3: Cross multiply
    9,121,086.90x = 12,587,247.18 × 4,991,476.86
  4. Step 4: Simplify right side
    9,121,086.90x = 62,828,953,030,070.26
  5. Step 5: Solve for x
    x = 62,828,953,030,070.26/9,121,086.90
  6. Step 6: Final answer
    x = 6,888,318.65

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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.