Home / 10,963.17-15,129.18-6,486.84

Finding the Fourth Proportional to 10,963.17, 15,129.18 and 6,486.84

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Solution

The fourth proportional to 10,963.17, 15,129.18 and 6,486.84 is: 8,951.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,963.17 : 15,129.18 = 6,486.84 : x
  2. Step 2: Convert to fraction form
    10,963.17/15,129.18 = 6,486.84/x
  3. Step 3: Cross multiply
    10,963.17x = 15,129.18 × 6,486.84
  4. Step 4: Simplify right side
    10,963.17x = 98,140,569.99
  5. Step 5: Solve for x
    x = 98,140,569.99/10,963.17
  6. Step 6: Final answer
    x = 8,951.84

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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.