Home / 15,569.55-21,486.45-8,856.14

Finding the Fourth Proportional to 15,569.55, 21,486.45 and 8,856.14

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Solution

The fourth proportional to 15,569.55, 21,486.45 and 8,856.14 is: 12,221.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,569.55 : 21,486.45 = 8,856.14 : x
  2. Step 2: Convert to fraction form
    15,569.55/21,486.45 = 8,856.14/x
  3. Step 3: Cross multiply
    15,569.55x = 21,486.45 × 8,856.14
  4. Step 4: Simplify right side
    15,569.55x = 190,286,901.87
  5. Step 5: Solve for x
    x = 190,286,901.87/15,569.55
  6. Step 6: Final answer
    x = 12,221.73

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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.