Home / 10,919.20-16,459.24-10,656.80

Finding the Fourth Proportional to 10,919.20, 16,459.24 and 10,656.80

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Solution

The fourth proportional to 10,919.20, 16,459.24 and 10,656.80 is: 16,063.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,919.20 : 16,459.24 = 10,656.80 : x
  2. Step 2: Convert to fraction form
    10,919.20/16,459.24 = 10,656.80/x
  3. Step 3: Cross multiply
    10,919.20x = 16,459.24 × 10,656.80
  4. Step 4: Simplify right side
    10,919.20x = 175,402,828.83
  5. Step 5: Solve for x
    x = 175,402,828.83/10,919.20
  6. Step 6: Final answer
    x = 16,063.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.