Home / 17,135.10-25,686.45-13,384.80

Finding the Fourth Proportional to 17,135.10, 25,686.45 and 13,384.80

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Solution

The fourth proportional to 17,135.10, 25,686.45 and 13,384.80 is: 20,064.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,135.10 : 25,686.45 = 13,384.80 : x
  2. Step 2: Convert to fraction form
    17,135.10/25,686.45 = 13,384.80/x
  3. Step 3: Cross multiply
    17,135.10x = 25,686.45 × 13,384.80
  4. Step 4: Simplify right side
    17,135.10x = 343,807,995.96
  5. Step 5: Solve for x
    x = 343,807,995.96/17,135.10
  6. Step 6: Final answer
    x = 20,064.55

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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.