Home / 15,184.79-20,945.52-9,805.18

Finding the Fourth Proportional to 15,184.79, 20,945.52 and 9,805.18

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Solution

The fourth proportional to 15,184.79, 20,945.52 and 9,805.18 is: 13,525.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,184.79 : 20,945.52 = 9,805.18 : x
  2. Step 2: Convert to fraction form
    15,184.79/20,945.52 = 9,805.18/x
  3. Step 3: Cross multiply
    15,184.79x = 20,945.52 × 9,805.18
  4. Step 4: Simplify right side
    15,184.79x = 205,374,525.84
  5. Step 5: Solve for x
    x = 205,374,525.84/15,184.79
  6. Step 6: Final answer
    x = 13,525.02

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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.