Home / 18,889.28-28,332.69-5,741.76

Finding the Fourth Proportional to 18,889.28, 28,332.69 and 5,741.76

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Solution

The fourth proportional to 18,889.28, 28,332.69 and 5,741.76 is: 8,612.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,889.28 : 28,332.69 = 5,741.76 : x
  2. Step 2: Convert to fraction form
    18,889.28/28,332.69 = 5,741.76/x
  3. Step 3: Cross multiply
    18,889.28x = 28,332.69 × 5,741.76
  4. Step 4: Simplify right side
    18,889.28x = 162,679,506.13
  5. Step 5: Solve for x
    x = 162,679,506.13/18,889.28
  6. Step 6: Final answer
    x = 8,612.27

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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.