Home / 10,412.32-15,618.32-5,218.08

Finding the Fourth Proportional to 10,412.32, 15,618.32 and 5,218.08

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Solution

The fourth proportional to 10,412.32, 15,618.32 and 5,218.08 is: 7,827.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,412.32 : 15,618.32 = 5,218.08 : x
  2. Step 2: Convert to fraction form
    10,412.32/15,618.32 = 5,218.08/x
  3. Step 3: Cross multiply
    10,412.32x = 15,618.32 × 5,218.08
  4. Step 4: Simplify right side
    10,412.32x = 81,497,643.23
  5. Step 5: Solve for x
    x = 81,497,643.23/10,412.32
  6. Step 6: Final answer
    x = 7,827.04

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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.