Home / 15,942.68-22,001.93-8,869.10

Finding the Fourth Proportional to 15,942.68, 22,001.93 and 8,869.10

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Solution

The fourth proportional to 15,942.68, 22,001.93 and 8,869.10 is: 12,239.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,942.68 : 22,001.93 = 8,869.10 : x
  2. Step 2: Convert to fraction form
    15,942.68/22,001.93 = 8,869.10/x
  3. Step 3: Cross multiply
    15,942.68x = 22,001.93 × 8,869.10
  4. Step 4: Simplify right side
    15,942.68x = 195,137,163.01
  5. Step 5: Solve for x
    x = 195,137,163.01/15,942.68
  6. Step 6: Final answer
    x = 12,239.93

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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.