Home / 10,532.80-14,498.40-9,611.20

Finding the Fourth Proportional to 10,532.80, 14,498.40 and 9,611.20

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Solution

The fourth proportional to 10,532.80, 14,498.40 and 9,611.20 is: 13,229.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,532.80 : 14,498.40 = 9,611.20 : x
  2. Step 2: Convert to fraction form
    10,532.80/14,498.40 = 9,611.20/x
  3. Step 3: Cross multiply
    10,532.80x = 14,498.40 × 9,611.20
  4. Step 4: Simplify right side
    10,532.80x = 139,347,022.08
  5. Step 5: Solve for x
    x = 139,347,022.08/10,532.80
  6. Step 6: Final answer
    x = 13,229.82

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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.