Home / 13,513,261.13-18,650,155.72-8,285,344.76

Finding the Fourth Proportional to 13,513,261.13, 18,650,155.72 and 8,285,344.76

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Solution

The fourth proportional to 13,513,261.13, 18,650,155.72 and 8,285,344.76 is: 11,434,913.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513,261.13 : 18,650,155.72 = 8,285,344.76 : x
  2. Step 2: Convert to fraction form
    13,513,261.13/18,650,155.72 = 8,285,344.76/x
  3. Step 3: Cross multiply
    13,513,261.13x = 18,650,155.72 × 8,285,344.76
  4. Step 4: Simplify right side
    13,513,261.13x = 154,522,969,853,921.91
  5. Step 5: Solve for x
    x = 154,522,969,853,921.91/13,513,261.13
  6. Step 6: Final answer
    x = 11,434,913.33

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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.