Home / 8,965.30-12,371.16-4,985.76

Finding the Fourth Proportional to 8,965.30, 12,371.16 and 4,985.76

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Solution

The fourth proportional to 8,965.30, 12,371.16 and 4,985.76 is: 6,879.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.30 : 12,371.16 = 4,985.76 : x
  2. Step 2: Convert to fraction form
    8,965.30/12,371.16 = 4,985.76/x
  3. Step 3: Cross multiply
    8,965.30x = 12,371.16 × 4,985.76
  4. Step 4: Simplify right side
    8,965.30x = 61,679,634.68
  5. Step 5: Solve for x
    x = 61,679,634.68/8,965.30
  6. Step 6: Final answer
    x = 6,879.82

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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.