Home / 11,591,421.60-17,387,132.40-7,280,407.20

Finding the Fourth Proportional to 11,591,421.60, 17,387,132.40 and 7,280,407.20

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Solution

The fourth proportional to 11,591,421.60, 17,387,132.40 and 7,280,407.20 is: 10,920,610.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,591,421.60 : 17,387,132.40 = 7,280,407.20 : x
  2. Step 2: Convert to fraction form
    11,591,421.60/17,387,132.40 = 7,280,407.20/x
  3. Step 3: Cross multiply
    11,591,421.60x = 17,387,132.40 × 7,280,407.20
  4. Step 4: Simplify right side
    11,591,421.60x = 126,585,403,912,313.27
  5. Step 5: Solve for x
    x = 126,585,403,912,313.27/11,591,421.60
  6. Step 6: Final answer
    x = 10,920,610.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.