Home / 16,985.60-25,480.80-5,297.60

Finding the Fourth Proportional to 16,985.60, 25,480.80 and 5,297.60

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Solution

The fourth proportional to 16,985.60, 25,480.80 and 5,297.60 is: 7,947.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,985.60 : 25,480.80 = 5,297.60 : x
  2. Step 2: Convert to fraction form
    16,985.60/25,480.80 = 5,297.60/x
  3. Step 3: Cross multiply
    16,985.60x = 25,480.80 × 5,297.60
  4. Step 4: Simplify right side
    16,985.60x = 134,987,086.08
  5. Step 5: Solve for x
    x = 134,987,086.08/16,985.60
  6. Step 6: Final answer
    x = 7,947.15

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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.