Home / 18,985.05-26,195.31-11,023.16

Finding the Fourth Proportional to 18,985.05, 26,195.31 and 11,023.16

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Solution

The fourth proportional to 18,985.05, 26,195.31 and 11,023.16 is: 15,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985.05 : 26,195.31 = 11,023.16 : x
  2. Step 2: Convert to fraction form
    18,985.05/26,195.31 = 11,023.16/x
  3. Step 3: Cross multiply
    18,985.05x = 26,195.31 × 11,023.16
  4. Step 4: Simplify right side
    18,985.05x = 288,754,962.40
  5. Step 5: Solve for x
    x = 288,754,962.40/18,985.05
  6. Step 6: Final answer
    x = 15,209.60

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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.