Home / 18,448.13-27,680.30-9,681.00

Finding the Fourth Proportional to 18,448.13, 27,680.30 and 9,681.00

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Solution

The fourth proportional to 18,448.13, 27,680.30 and 9,681.00 is: 14,525.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,448.13 : 27,680.30 = 9,681.00 : x
  2. Step 2: Convert to fraction form
    18,448.13/27,680.30 = 9,681.00/x
  3. Step 3: Cross multiply
    18,448.13x = 27,680.30 × 9,681.00
  4. Step 4: Simplify right side
    18,448.13x = 267,972,868.40
  5. Step 5: Solve for x
    x = 267,972,868.40/18,448.13
  6. Step 6: Final answer
    x = 14,525.74

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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.