Home / 11,445.60-15,800.34-8,614.08

Finding the Fourth Proportional to 11,445.60, 15,800.34 and 8,614.08

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Solution

The fourth proportional to 11,445.60, 15,800.34 and 8,614.08 is: 11,891.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,445.60 : 15,800.34 = 8,614.08 : x
  2. Step 2: Convert to fraction form
    11,445.60/15,800.34 = 8,614.08/x
  3. Step 3: Cross multiply
    11,445.60x = 15,800.34 × 8,614.08
  4. Step 4: Simplify right side
    11,445.60x = 136,105,392.79
  5. Step 5: Solve for x
    x = 136,105,392.79/11,445.60
  6. Step 6: Final answer
    x = 11,891.50

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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.