Home / 10,412.68-15,618.87-2,515.12

Finding the Fourth Proportional to 10,412.68, 15,618.87 and 2,515.12

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Solution

The fourth proportional to 10,412.68, 15,618.87 and 2,515.12 is: 3,772.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,412.68 : 15,618.87 = 2,515.12 : x
  2. Step 2: Convert to fraction form
    10,412.68/15,618.87 = 2,515.12/x
  3. Step 3: Cross multiply
    10,412.68x = 15,618.87 × 2,515.12
  4. Step 4: Simplify right side
    10,412.68x = 39,283,332.31
  5. Step 5: Solve for x
    x = 39,283,332.31/10,412.68
  6. Step 6: Final answer
    x = 3,772.64

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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.