Home / 18,156.60-25,055.16-12,187.44

Finding the Fourth Proportional to 18,156.60, 25,055.16 and 12,187.44

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Solution

The fourth proportional to 18,156.60, 25,055.16 and 12,187.44 is: 16,818.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,156.60 : 25,055.16 = 12,187.44 : x
  2. Step 2: Convert to fraction form
    18,156.60/25,055.16 = 12,187.44/x
  3. Step 3: Cross multiply
    18,156.60x = 25,055.16 × 12,187.44
  4. Step 4: Simplify right side
    18,156.60x = 305,358,259.19
  5. Step 5: Solve for x
    x = 305,358,259.19/18,156.60
  6. Step 6: Final answer
    x = 16,818.03

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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.