Home / 18,278.84-25,224.80-9,895.34

Finding the Fourth Proportional to 18,278.84, 25,224.80 and 9,895.34

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Solution

The fourth proportional to 18,278.84, 25,224.80 and 9,895.34 is: 13,655.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.84 : 25,224.80 = 9,895.34 : x
  2. Step 2: Convert to fraction form
    18,278.84/25,224.80 = 9,895.34/x
  3. Step 3: Cross multiply
    18,278.84x = 25,224.80 × 9,895.34
  4. Step 4: Simplify right side
    18,278.84x = 249,607,796.83
  5. Step 5: Solve for x
    x = 249,607,796.83/18,278.84
  6. Step 6: Final answer
    x = 13,655.56

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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.