Home / 12,862.40-19,281.28-4,092.48

Finding the Fourth Proportional to 12,862.40, 19,281.28 and 4,092.48

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Solution

The fourth proportional to 12,862.40, 19,281.28 and 4,092.48 is: 6,134.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,862.40 : 19,281.28 = 4,092.48 : x
  2. Step 2: Convert to fraction form
    12,862.40/19,281.28 = 4,092.48/x
  3. Step 3: Cross multiply
    12,862.40x = 19,281.28 × 4,092.48
  4. Step 4: Simplify right side
    12,862.40x = 78,908,252.77
  5. Step 5: Solve for x
    x = 78,908,252.77/12,862.40
  6. Step 6: Final answer
    x = 6,134.80

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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.