Home / 10,690.52-14,750.56-6,211.68

Finding the Fourth Proportional to 10,690.52, 14,750.56 and 6,211.68

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Solution

The fourth proportional to 10,690.52, 14,750.56 and 6,211.68 is: 8,570.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,690.52 : 14,750.56 = 6,211.68 : x
  2. Step 2: Convert to fraction form
    10,690.52/14,750.56 = 6,211.68/x
  3. Step 3: Cross multiply
    10,690.52x = 14,750.56 × 6,211.68
  4. Step 4: Simplify right side
    10,690.52x = 91,625,758.54
  5. Step 5: Solve for x
    x = 91,625,758.54/10,690.52
  6. Step 6: Final answer
    x = 8,570.75

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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.