Home / 10,447.62-15,656.70-5,769.74

Finding the Fourth Proportional to 10,447.62, 15,656.70 and 5,769.74

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Solution

The fourth proportional to 10,447.62, 15,656.70 and 5,769.74 is: 8,646.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,447.62 : 15,656.70 = 5,769.74 : x
  2. Step 2: Convert to fraction form
    10,447.62/15,656.70 = 5,769.74/x
  3. Step 3: Cross multiply
    10,447.62x = 15,656.70 × 5,769.74
  4. Step 4: Simplify right side
    10,447.62x = 90,335,009.97
  5. Step 5: Solve for x
    x = 90,335,009.97/10,447.62
  6. Step 6: Final answer
    x = 8,646.47

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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.