Home / 15,276.89-21,066.11-11,306.33

Finding the Fourth Proportional to 15,276.89, 21,066.11 and 11,306.33

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Solution

The fourth proportional to 15,276.89, 21,066.11 and 11,306.33 is: 15,590.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,276.89 : 21,066.11 = 11,306.33 : x
  2. Step 2: Convert to fraction form
    15,276.89/21,066.11 = 11,306.33/x
  3. Step 3: Cross multiply
    15,276.89x = 21,066.11 × 11,306.33
  4. Step 4: Simplify right side
    15,276.89x = 238,180,314.41
  5. Step 5: Solve for x
    x = 238,180,314.41/15,276.89
  6. Step 6: Final answer
    x = 15,590.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.