Home / 15,038.40-20,752.47-8,324.04

Finding the Fourth Proportional to 15,038.40, 20,752.47 and 8,324.04

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Solution

The fourth proportional to 15,038.40, 20,752.47 and 8,324.04 is: 11,486.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,038.40 : 20,752.47 = 8,324.04 : x
  2. Step 2: Convert to fraction form
    15,038.40/20,752.47 = 8,324.04/x
  3. Step 3: Cross multiply
    15,038.40x = 20,752.47 × 8,324.04
  4. Step 4: Simplify right side
    15,038.40x = 172,744,411.04
  5. Step 5: Solve for x
    x = 172,744,411.04/15,038.40
  6. Step 6: Final answer
    x = 11,486.89

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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.