Home / 13,840.67-20,788.95-8,304.53

Finding the Fourth Proportional to 13,840.67, 20,788.95 and 8,304.53

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Solution

The fourth proportional to 13,840.67, 20,788.95 and 8,304.53 is: 12,473.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.67 : 20,788.95 = 8,304.53 : x
  2. Step 2: Convert to fraction form
    13,840.67/20,788.95 = 8,304.53/x
  3. Step 3: Cross multiply
    13,840.67x = 20,788.95 × 8,304.53
  4. Step 4: Simplify right side
    13,840.67x = 172,642,386.14
  5. Step 5: Solve for x
    x = 172,642,386.14/13,840.67
  6. Step 6: Final answer
    x = 12,473.55

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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.