Home / 15,479.67-23,218.29-5,621.16

Finding the Fourth Proportional to 15,479.67, 23,218.29 and 5,621.16

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Solution

The fourth proportional to 15,479.67, 23,218.29 and 5,621.16 is: 8,431.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,479.67 : 23,218.29 = 5,621.16 : x
  2. Step 2: Convert to fraction form
    15,479.67/23,218.29 = 5,621.16/x
  3. Step 3: Cross multiply
    15,479.67x = 23,218.29 × 5,621.16
  4. Step 4: Simplify right side
    15,479.67x = 130,513,723.02
  5. Step 5: Solve for x
    x = 130,513,723.02/15,479.67
  6. Step 6: Final answer
    x = 8,431.30

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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.