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Finding the Fourth Proportional to 18,526.79, 27,790.18 and 4,675.79

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Solution

The fourth proportional to 18,526.79, 27,790.18 and 4,675.79 is: 7,013.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,526.79 : 27,790.18 = 4,675.79 : x
  2. Step 2: Convert to fraction form
    18,526.79/27,790.18 = 4,675.79/x
  3. Step 3: Cross multiply
    18,526.79x = 27,790.18 × 4,675.79
  4. Step 4: Simplify right side
    18,526.79x = 129,941,103.53
  5. Step 5: Solve for x
    x = 129,941,103.53/18,526.79
  6. Step 6: Final answer
    x = 7,013.69

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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.