Home / 18,347.90-27,521.00-7,812.83

Finding the Fourth Proportional to 18,347.90, 27,521.00 and 7,812.83

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Solution

The fourth proportional to 18,347.90, 27,521.00 and 7,812.83 is: 11,718.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,347.90 : 27,521.00 = 7,812.83 : x
  2. Step 2: Convert to fraction form
    18,347.90/27,521.00 = 7,812.83/x
  3. Step 3: Cross multiply
    18,347.90x = 27,521.00 × 7,812.83
  4. Step 4: Simplify right side
    18,347.90x = 215,016,909.02
  5. Step 5: Solve for x
    x = 215,016,909.02/18,347.90
  6. Step 6: Final answer
    x = 11,718.88

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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.