Home / 10,956.20-16,434.30-5,124.20

Finding the Fourth Proportional to 10,956.20, 16,434.30 and 5,124.20

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Solution

The fourth proportional to 10,956.20, 16,434.30 and 5,124.20 is: 7,686.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,956.20 : 16,434.30 = 5,124.20 : x
  2. Step 2: Convert to fraction form
    10,956.20/16,434.30 = 5,124.20/x
  3. Step 3: Cross multiply
    10,956.20x = 16,434.30 × 5,124.20
  4. Step 4: Simplify right side
    10,956.20x = 84,212,640.06
  5. Step 5: Solve for x
    x = 84,212,640.06/10,956.20
  6. Step 6: Final answer
    x = 7,686.30

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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.