Home / 15,009.30-22,494.78-7,111.80

Finding the Fourth Proportional to 15,009.30, 22,494.78 and 7,111.80

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Solution

The fourth proportional to 15,009.30, 22,494.78 and 7,111.80 is: 10,658.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,009.30 : 22,494.78 = 7,111.80 : x
  2. Step 2: Convert to fraction form
    15,009.30/22,494.78 = 7,111.80/x
  3. Step 3: Cross multiply
    15,009.30x = 22,494.78 × 7,111.80
  4. Step 4: Simplify right side
    15,009.30x = 159,978,376.40
  5. Step 5: Solve for x
    x = 159,978,376.40/15,009.30
  6. Step 6: Final answer
    x = 10,658.62

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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.