Home / 11,290.29-16,931.85-10,553.20

Finding the Fourth Proportional to 11,290.29, 16,931.85 and 10,553.20

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Solution

The fourth proportional to 11,290.29, 16,931.85 and 10,553.20 is: 15,826.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,290.29 : 16,931.85 = 10,553.20 : x
  2. Step 2: Convert to fraction form
    11,290.29/16,931.85 = 10,553.20/x
  3. Step 3: Cross multiply
    11,290.29x = 16,931.85 × 10,553.20
  4. Step 4: Simplify right side
    11,290.29x = 178,685,146.65
  5. Step 5: Solve for x
    x = 178,685,146.65/11,290.29
  6. Step 6: Final answer
    x = 15,826.44

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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.