Home / 11,742.60-17,628.30-11,656.20

Finding the Fourth Proportional to 11,742.60, 17,628.30 and 11,656.20

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Solution

The fourth proportional to 11,742.60, 17,628.30 and 11,656.20 is: 17,498.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,742.60 : 17,628.30 = 11,656.20 : x
  2. Step 2: Convert to fraction form
    11,742.60/17,628.30 = 11,656.20/x
  3. Step 3: Cross multiply
    11,742.60x = 17,628.30 × 11,656.20
  4. Step 4: Simplify right side
    11,742.60x = 205,478,990.46
  5. Step 5: Solve for x
    x = 205,478,990.46/11,742.60
  6. Step 6: Final answer
    x = 17,498.59

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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.