Home / 15,780.04-21,777.84-9,066.52

Finding the Fourth Proportional to 15,780.04, 21,777.84 and 9,066.52

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Solution

The fourth proportional to 15,780.04, 21,777.84 and 9,066.52 is: 12,512.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,780.04 : 21,777.84 = 9,066.52 : x
  2. Step 2: Convert to fraction form
    15,780.04/21,777.84 = 9,066.52/x
  3. Step 3: Cross multiply
    15,780.04x = 21,777.84 × 9,066.52
  4. Step 4: Simplify right side
    15,780.04x = 197,449,221.92
  5. Step 5: Solve for x
    x = 197,449,221.92/15,780.04
  6. Step 6: Final answer
    x = 12,512.59

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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.