Home / 18,259.28-25,197.75-9,875.78

Finding the Fourth Proportional to 18,259.28, 25,197.75 and 9,875.78

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Solution

The fourth proportional to 18,259.28, 25,197.75 and 9,875.78 is: 13,628.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,259.28 : 25,197.75 = 9,875.78 : x
  2. Step 2: Convert to fraction form
    18,259.28/25,197.75 = 9,875.78/x
  3. Step 3: Cross multiply
    18,259.28x = 25,197.75 × 9,875.78
  4. Step 4: Simplify right side
    18,259.28x = 248,847,435.50
  5. Step 5: Solve for x
    x = 248,847,435.50/18,259.28
  6. Step 6: Final answer
    x = 13,628.55

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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.