Home / 15,204.66-21,002.58-12,231.69

Finding the Fourth Proportional to 15,204.66, 21,002.58 and 12,231.69

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Solution

The fourth proportional to 15,204.66, 21,002.58 and 12,231.69 is: 16,895.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,204.66 : 21,002.58 = 12,231.69 : x
  2. Step 2: Convert to fraction form
    15,204.66/21,002.58 = 12,231.69/x
  3. Step 3: Cross multiply
    15,204.66x = 21,002.58 × 12,231.69
  4. Step 4: Simplify right side
    15,204.66x = 256,897,047.76
  5. Step 5: Solve for x
    x = 256,897,047.76/15,204.66
  6. Step 6: Final answer
    x = 16,895.94

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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.