Home / 14,451.60-21,670.56-6,661.20

Finding the Fourth Proportional to 14,451.60, 21,670.56 and 6,661.20

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Solution

The fourth proportional to 14,451.60, 21,670.56 and 6,661.20 is: 9,988.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,451.60 : 21,670.56 = 6,661.20 : x
  2. Step 2: Convert to fraction form
    14,451.60/21,670.56 = 6,661.20/x
  3. Step 3: Cross multiply
    14,451.60x = 21,670.56 × 6,661.20
  4. Step 4: Simplify right side
    14,451.60x = 144,351,934.27
  5. Step 5: Solve for x
    x = 144,351,934.27/14,451.60
  6. Step 6: Final answer
    x = 9,988.65

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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.