Home / 13,248.36-18,281.70-7,658.28

Finding the Fourth Proportional to 13,248.36, 18,281.70 and 7,658.28

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Solution

The fourth proportional to 13,248.36, 18,281.70 and 7,658.28 is: 10,567.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.36 : 18,281.70 = 7,658.28 : x
  2. Step 2: Convert to fraction form
    13,248.36/18,281.70 = 7,658.28/x
  3. Step 3: Cross multiply
    13,248.36x = 18,281.70 × 7,658.28
  4. Step 4: Simplify right side
    13,248.36x = 140,006,377.48
  5. Step 5: Solve for x
    x = 140,006,377.48/13,248.36
  6. Step 6: Final answer
    x = 10,567.83

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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.