Home / 15,218.90-22,830.78-6,453.92

Finding the Fourth Proportional to 15,218.90, 22,830.78 and 6,453.92

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Solution

The fourth proportional to 15,218.90, 22,830.78 and 6,453.92 is: 9,681.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,218.90 : 22,830.78 = 6,453.92 : x
  2. Step 2: Convert to fraction form
    15,218.90/22,830.78 = 6,453.92/x
  3. Step 3: Cross multiply
    15,218.90x = 22,830.78 × 6,453.92
  4. Step 4: Simplify right side
    15,218.90x = 147,348,027.66
  5. Step 5: Solve for x
    x = 147,348,027.66/15,218.90
  6. Step 6: Final answer
    x = 9,681.91

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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.