Home / 15,857.18-23,788.49-5,328.21

Finding the Fourth Proportional to 15,857.18, 23,788.49 and 5,328.21

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Solution

The fourth proportional to 15,857.18, 23,788.49 and 5,328.21 is: 7,993.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,857.18 : 23,788.49 = 5,328.21 : x
  2. Step 2: Convert to fraction form
    15,857.18/23,788.49 = 5,328.21/x
  3. Step 3: Cross multiply
    15,857.18x = 23,788.49 × 5,328.21
  4. Step 4: Simplify right side
    15,857.18x = 126,750,070.30
  5. Step 5: Solve for x
    x = 126,750,070.30/15,857.18
  6. Step 6: Final answer
    x = 7,993.23

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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.