Home / 12,164.40-18,254.70-5,587.20

Finding the Fourth Proportional to 12,164.40, 18,254.70 and 5,587.20

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Solution

The fourth proportional to 12,164.40, 18,254.70 and 5,587.20 is: 8,384.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,164.40 : 18,254.70 = 5,587.20 : x
  2. Step 2: Convert to fraction form
    12,164.40/18,254.70 = 5,587.20/x
  3. Step 3: Cross multiply
    12,164.40x = 18,254.70 × 5,587.20
  4. Step 4: Simplify right side
    12,164.40x = 101,992,659.84
  5. Step 5: Solve for x
    x = 101,992,659.84/12,164.40
  6. Step 6: Final answer
    x = 8,384.52

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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.