Home / 18,271.26-25,214.45-9,887.76

Finding the Fourth Proportional to 18,271.26, 25,214.45 and 9,887.76

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Solution

The fourth proportional to 18,271.26, 25,214.45 and 9,887.76 is: 13,645.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.26 : 25,214.45 = 9,887.76 : x
  2. Step 2: Convert to fraction form
    18,271.26/25,214.45 = 9,887.76/x
  3. Step 3: Cross multiply
    18,271.26x = 25,214.45 × 9,887.76
  4. Step 4: Simplify right side
    18,271.26x = 249,314,380.69
  5. Step 5: Solve for x
    x = 249,314,380.69/18,271.26
  6. Step 6: Final answer
    x = 13,645.17

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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.