Home / 19,247.40-28,865.10-7,564.20

Finding the Fourth Proportional to 19,247.40, 28,865.10 and 7,564.20

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Solution

The fourth proportional to 19,247.40, 28,865.10 and 7,564.20 is: 11,343.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,247.40 : 28,865.10 = 7,564.20 : x
  2. Step 2: Convert to fraction form
    19,247.40/28,865.10 = 7,564.20/x
  3. Step 3: Cross multiply
    19,247.40x = 28,865.10 × 7,564.20
  4. Step 4: Simplify right side
    19,247.40x = 218,341,389.42
  5. Step 5: Solve for x
    x = 218,341,389.42/19,247.40
  6. Step 6: Final answer
    x = 11,343.94

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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.