Home / 18,270.96-25,213.95-9,887.46

Finding the Fourth Proportional to 18,270.96, 25,213.95 and 9,887.46

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Solution

The fourth proportional to 18,270.96, 25,213.95 and 9,887.46 is: 13,644.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,270.96 : 25,213.95 = 9,887.46 : x
  2. Step 2: Convert to fraction form
    18,270.96/25,213.95 = 9,887.46/x
  3. Step 3: Cross multiply
    18,270.96x = 25,213.95 × 9,887.46
  4. Step 4: Simplify right side
    18,270.96x = 249,301,922.07
  5. Step 5: Solve for x
    x = 249,301,922.07/18,270.96
  6. Step 6: Final answer
    x = 13,644.71

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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.