Home / 10,342.83-15,515.16-2,947.13

Finding the Fourth Proportional to 10,342.83, 15,515.16 and 2,947.13

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Solution

The fourth proportional to 10,342.83, 15,515.16 and 2,947.13 is: 4,420.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,342.83 : 15,515.16 = 2,947.13 : x
  2. Step 2: Convert to fraction form
    10,342.83/15,515.16 = 2,947.13/x
  3. Step 3: Cross multiply
    10,342.83x = 15,515.16 × 2,947.13
  4. Step 4: Simplify right side
    10,342.83x = 45,725,115.92
  5. Step 5: Solve for x
    x = 45,725,115.92/10,342.83
  6. Step 6: Final answer
    x = 4,420.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.