Home / 18,742.08-28,117.17-7,055.28

Finding the Fourth Proportional to 18,742.08, 28,117.17 and 7,055.28

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Solution

The fourth proportional to 18,742.08, 28,117.17 and 7,055.28 is: 10,584.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,742.08 : 28,117.17 = 7,055.28 : x
  2. Step 2: Convert to fraction form
    18,742.08/28,117.17 = 7,055.28/x
  3. Step 3: Cross multiply
    18,742.08x = 28,117.17 × 7,055.28
  4. Step 4: Simplify right side
    18,742.08x = 198,374,507.16
  5. Step 5: Solve for x
    x = 198,374,507.16/18,742.08
  6. Step 6: Final answer
    x = 10,584.44

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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.