Home / 15,089.60-20,821.52-9,038.42

Finding the Fourth Proportional to 15,089.60, 20,821.52 and 9,038.42

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Solution

The fourth proportional to 15,089.60, 20,821.52 and 9,038.42 is: 12,471.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,089.60 : 20,821.52 = 9,038.42 : x
  2. Step 2: Convert to fraction form
    15,089.60/20,821.52 = 9,038.42/x
  3. Step 3: Cross multiply
    15,089.60x = 20,821.52 × 9,038.42
  4. Step 4: Simplify right side
    15,089.60x = 188,193,493.50
  5. Step 5: Solve for x
    x = 188,193,493.50/15,089.60
  6. Step 6: Final answer
    x = 12,471.74

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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.