Home / 18,965.04-28,423.08-9,083.76

Finding the Fourth Proportional to 18,965.04, 28,423.08 and 9,083.76

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Solution

The fourth proportional to 18,965.04, 28,423.08 and 9,083.76 is: 13,613.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,965.04 : 28,423.08 = 9,083.76 : x
  2. Step 2: Convert to fraction form
    18,965.04/28,423.08 = 9,083.76/x
  3. Step 3: Cross multiply
    18,965.04x = 28,423.08 × 9,083.76
  4. Step 4: Simplify right side
    18,965.04x = 258,188,437.18
  5. Step 5: Solve for x
    x = 258,188,437.18/18,965.04
  6. Step 6: Final answer
    x = 13,613.91

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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.