Home / 10,956.30-16,423.65-5,405.10

Finding the Fourth Proportional to 10,956.30, 16,423.65 and 5,405.10

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Solution

The fourth proportional to 10,956.30, 16,423.65 and 5,405.10 is: 8,102.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,956.30 : 16,423.65 = 5,405.10 : x
  2. Step 2: Convert to fraction form
    10,956.30/16,423.65 = 5,405.10/x
  3. Step 3: Cross multiply
    10,956.30x = 16,423.65 × 5,405.10
  4. Step 4: Simplify right side
    10,956.30x = 88,771,470.62
  5. Step 5: Solve for x
    x = 88,771,470.62/10,956.30
  6. Step 6: Final answer
    x = 8,102.32

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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.