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Finding the Fourth Proportional to 8,365.74, 12,547.18 and 2,520.98

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Solution

The fourth proportional to 8,365.74, 12,547.18 and 2,520.98 is: 3,781.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,365.74 : 12,547.18 = 2,520.98 : x
  2. Step 2: Convert to fraction form
    8,365.74/12,547.18 = 2,520.98/x
  3. Step 3: Cross multiply
    8,365.74x = 12,547.18 × 2,520.98
  4. Step 4: Simplify right side
    8,365.74x = 31,631,189.84
  5. Step 5: Solve for x
    x = 31,631,189.84/8,365.74
  6. Step 6: Final answer
    x = 3,781.04

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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.