Home / 12,175.60-18,263.40-6,977.20

Finding the Fourth Proportional to 12,175.60, 18,263.40 and 6,977.20

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Solution

The fourth proportional to 12,175.60, 18,263.40 and 6,977.20 is: 10,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,175.60 : 18,263.40 = 6,977.20 : x
  2. Step 2: Convert to fraction form
    12,175.60/18,263.40 = 6,977.20/x
  3. Step 3: Cross multiply
    12,175.60x = 18,263.40 × 6,977.20
  4. Step 4: Simplify right side
    12,175.60x = 127,427,394.48
  5. Step 5: Solve for x
    x = 127,427,394.48/12,175.60
  6. Step 6: Final answer
    x = 10,465.80

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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.