Home / 6,689.12-10,043.40-4,939.52

Finding the Fourth Proportional to 6,689.12, 10,043.40 and 4,939.52

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Solution

The fourth proportional to 6,689.12, 10,043.40 and 4,939.52 is: 7,416.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,689.12 : 10,043.40 = 4,939.52 : x
  2. Step 2: Convert to fraction form
    6,689.12/10,043.40 = 4,939.52/x
  3. Step 3: Cross multiply
    6,689.12x = 10,043.40 × 4,939.52
  4. Step 4: Simplify right side
    6,689.12x = 49,609,575.17
  5. Step 5: Solve for x
    x = 49,609,575.17/6,689.12
  6. Step 6: Final answer
    x = 7,416.46

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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.