Home / 8,358.90-12,538.65-2,515.51

Finding the Fourth Proportional to 8,358.90, 12,538.65 and 2,515.51

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Solution

The fourth proportional to 8,358.90, 12,538.65 and 2,515.51 is: 3,773.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,358.90 : 12,538.65 = 2,515.51 : x
  2. Step 2: Convert to fraction form
    8,358.90/12,538.65 = 2,515.51/x
  3. Step 3: Cross multiply
    8,358.90x = 12,538.65 × 2,515.51
  4. Step 4: Simplify right side
    8,358.90x = 31,541,039.89
  5. Step 5: Solve for x
    x = 31,541,039.89/8,358.90
  6. Step 6: Final answer
    x = 3,773.35

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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.