Home / 8,320.19-12,480.24-2,476.80

Finding the Fourth Proportional to 8,320.19, 12,480.24 and 2,476.80

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Solution

The fourth proportional to 8,320.19, 12,480.24 and 2,476.80 is: 3,715.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.19 : 12,480.24 = 2,476.80 : x
  2. Step 2: Convert to fraction form
    8,320.19/12,480.24 = 2,476.80/x
  3. Step 3: Cross multiply
    8,320.19x = 12,480.24 × 2,476.80
  4. Step 4: Simplify right side
    8,320.19x = 30,911,058.43
  5. Step 5: Solve for x
    x = 30,911,058.43/8,320.19
  6. Step 6: Final answer
    x = 3,715.19

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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.