Home / 15,712.60-23,540.10-13,235.80

Finding the Fourth Proportional to 15,712.60, 23,540.10 and 13,235.80

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Solution

The fourth proportional to 15,712.60, 23,540.10 and 13,235.80 is: 19,829.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,712.60 : 23,540.10 = 13,235.80 : x
  2. Step 2: Convert to fraction form
    15,712.60/23,540.10 = 13,235.80/x
  3. Step 3: Cross multiply
    15,712.60x = 23,540.10 × 13,235.80
  4. Step 4: Simplify right side
    15,712.60x = 311,572,055.58
  5. Step 5: Solve for x
    x = 311,572,055.58/15,712.60
  6. Step 6: Final answer
    x = 19,829.44

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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.