Home / 18,901.90-28,344.64-5,751.23

Finding the Fourth Proportional to 18,901.90, 28,344.64 and 5,751.23

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Solution

The fourth proportional to 18,901.90, 28,344.64 and 5,751.23 is: 8,624.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,901.90 : 28,344.64 = 5,751.23 : x
  2. Step 2: Convert to fraction form
    18,901.90/28,344.64 = 5,751.23/x
  3. Step 3: Cross multiply
    18,901.90x = 28,344.64 × 5,751.23
  4. Step 4: Simplify right side
    18,901.90x = 163,016,543.91
  5. Step 5: Solve for x
    x = 163,016,543.91/18,901.90
  6. Step 6: Final answer
    x = 8,624.35

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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.