Home / 8,669.73-11,970.10-5,690.63

Finding the Fourth Proportional to 8,669.73, 11,970.10 and 5,690.63

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Solution

The fourth proportional to 8,669.73, 11,970.10 and 5,690.63 is: 7,856.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,669.73 : 11,970.10 = 5,690.63 : x
  2. Step 2: Convert to fraction form
    8,669.73/11,970.10 = 5,690.63/x
  3. Step 3: Cross multiply
    8,669.73x = 11,970.10 × 5,690.63
  4. Step 4: Simplify right side
    8,669.73x = 68,117,447.20
  5. Step 5: Solve for x
    x = 68,117,447.20/8,669.73
  6. Step 6: Final answer
    x = 7,856.92

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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.