Home / 12,036.20-18,061.20-6,489.52

Finding the Fourth Proportional to 12,036.20, 18,061.20 and 6,489.52

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Solution

The fourth proportional to 12,036.20, 18,061.20 and 6,489.52 is: 9,738.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,036.20 : 18,061.20 = 6,489.52 : x
  2. Step 2: Convert to fraction form
    12,036.20/18,061.20 = 6,489.52/x
  3. Step 3: Cross multiply
    12,036.20x = 18,061.20 × 6,489.52
  4. Step 4: Simplify right side
    12,036.20x = 117,208,518.62
  5. Step 5: Solve for x
    x = 117,208,518.62/12,036.20
  6. Step 6: Final answer
    x = 9,738.00

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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.