Home / 10,431.64-14,397.11-5,955.78

Finding the Fourth Proportional to 10,431.64, 14,397.11 and 5,955.78

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Solution

The fourth proportional to 10,431.64, 14,397.11 and 5,955.78 is: 8,219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.64 : 14,397.11 = 5,955.78 : x
  2. Step 2: Convert to fraction form
    10,431.64/14,397.11 = 5,955.78/x
  3. Step 3: Cross multiply
    10,431.64x = 14,397.11 × 5,955.78
  4. Step 4: Simplify right side
    10,431.64x = 85,746,019.80
  5. Step 5: Solve for x
    x = 85,746,019.80/10,431.64
  6. Step 6: Final answer
    x = 8,219.80

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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.