Home / 15,532.05-21,434.48-8,817.87

Finding the Fourth Proportional to 15,532.05, 21,434.48 and 8,817.87

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Solution

The fourth proportional to 15,532.05, 21,434.48 and 8,817.87 is: 12,168.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,532.05 : 21,434.48 = 8,817.87 : x
  2. Step 2: Convert to fraction form
    15,532.05/21,434.48 = 8,817.87/x
  3. Step 3: Cross multiply
    15,532.05x = 21,434.48 × 8,817.87
  4. Step 4: Simplify right side
    15,532.05x = 189,006,458.16
  5. Step 5: Solve for x
    x = 189,006,458.16/15,532.05
  6. Step 6: Final answer
    x = 12,168.80

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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.