Home / 15,239.04-21,032.10-8,869.38

Finding the Fourth Proportional to 15,239.04, 21,032.10 and 8,869.38

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Solution

The fourth proportional to 15,239.04, 21,032.10 and 8,869.38 is: 12,241.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,239.04 : 21,032.10 = 8,869.38 : x
  2. Step 2: Convert to fraction form
    15,239.04/21,032.10 = 8,869.38/x
  3. Step 3: Cross multiply
    15,239.04x = 21,032.10 × 8,869.38
  4. Step 4: Simplify right side
    15,239.04x = 186,541,687.10
  5. Step 5: Solve for x
    x = 186,541,687.10/15,239.04
  6. Step 6: Final answer
    x = 12,241.04

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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.