Home / 15,479.16-23,221.20-5,618.22

Finding the Fourth Proportional to 15,479.16, 23,221.20 and 5,618.22

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Solution

The fourth proportional to 15,479.16, 23,221.20 and 5,618.22 is: 8,428.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,479.16 : 23,221.20 = 5,618.22 : x
  2. Step 2: Convert to fraction form
    15,479.16/23,221.20 = 5,618.22/x
  3. Step 3: Cross multiply
    15,479.16x = 23,221.20 × 5,618.22
  4. Step 4: Simplify right side
    15,479.16x = 130,461,810.26
  5. Step 5: Solve for x
    x = 130,461,810.26/15,479.16
  6. Step 6: Final answer
    x = 8,428.22

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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.