Home / 13,239.28-19,862.52-4,923.76

Finding the Fourth Proportional to 13,239.28, 19,862.52 and 4,923.76

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Solution

The fourth proportional to 13,239.28, 19,862.52 and 4,923.76 is: 7,386.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.28 : 19,862.52 = 4,923.76 : x
  2. Step 2: Convert to fraction form
    13,239.28/19,862.52 = 4,923.76/x
  3. Step 3: Cross multiply
    13,239.28x = 19,862.52 × 4,923.76
  4. Step 4: Simplify right side
    13,239.28x = 97,798,281.48
  5. Step 5: Solve for x
    x = 97,798,281.48/13,239.28
  6. Step 6: Final answer
    x = 7,386.98

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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.