Home / 8,320.12-12,480.18-2,476.72

Finding the Fourth Proportional to 8,320.12, 12,480.18 and 2,476.72

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Solution

The fourth proportional to 8,320.12, 12,480.18 and 2,476.72 is: 3,715.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.12 : 12,480.18 = 2,476.72 : x
  2. Step 2: Convert to fraction form
    8,320.12/12,480.18 = 2,476.72/x
  3. Step 3: Cross multiply
    8,320.12x = 12,480.18 × 2,476.72
  4. Step 4: Simplify right side
    8,320.12x = 30,909,911.41
  5. Step 5: Solve for x
    x = 30,909,911.41/8,320.12
  6. Step 6: Final answer
    x = 3,715.08

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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.