Home / 15,459.24-21,336.30-9,175.80

Finding the Fourth Proportional to 15,459.24, 21,336.30 and 9,175.80

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Solution

The fourth proportional to 15,459.24, 21,336.30 and 9,175.80 is: 12,664.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,459.24 : 21,336.30 = 9,175.80 : x
  2. Step 2: Convert to fraction form
    15,459.24/21,336.30 = 9,175.80/x
  3. Step 3: Cross multiply
    15,459.24x = 21,336.30 × 9,175.80
  4. Step 4: Simplify right side
    15,459.24x = 195,777,621.54
  5. Step 5: Solve for x
    x = 195,777,621.54/15,459.24
  6. Step 6: Final answer
    x = 12,664.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.