Home / 11,488.68-15,851.70-8,339.40

Finding the Fourth Proportional to 11,488.68, 15,851.70 and 8,339.40

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Solution

The fourth proportional to 11,488.68, 15,851.70 and 8,339.40 is: 11,506.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,488.68 : 15,851.70 = 8,339.40 : x
  2. Step 2: Convert to fraction form
    11,488.68/15,851.70 = 8,339.40/x
  3. Step 3: Cross multiply
    11,488.68x = 15,851.70 × 8,339.40
  4. Step 4: Simplify right side
    11,488.68x = 132,193,666.98
  5. Step 5: Solve for x
    x = 132,193,666.98/11,488.68
  6. Step 6: Final answer
    x = 11,506.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.