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Finding the Fourth Proportional to 15,030.21, 22,545.11 and 7,215.33

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Solution

The fourth proportional to 15,030.21, 22,545.11 and 7,215.33 is: 10,822.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,030.21 : 22,545.11 = 7,215.33 : x
  2. Step 2: Convert to fraction form
    15,030.21/22,545.11 = 7,215.33/x
  3. Step 3: Cross multiply
    15,030.21x = 22,545.11 × 7,215.33
  4. Step 4: Simplify right side
    15,030.21x = 162,670,426.57
  5. Step 5: Solve for x
    x = 162,670,426.57/15,030.21
  6. Step 6: Final answer
    x = 10,822.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.