Home / 9,111.25-13,666.88-2,955.25

Finding the Fourth Proportional to 9,111.25, 13,666.88 and 2,955.25

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Solution

The fourth proportional to 9,111.25, 13,666.88 and 2,955.25 is: 4,432.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,111.25 : 13,666.88 = 2,955.25 : x
  2. Step 2: Convert to fraction form
    9,111.25/13,666.88 = 2,955.25/x
  3. Step 3: Cross multiply
    9,111.25x = 13,666.88 × 2,955.25
  4. Step 4: Simplify right side
    9,111.25x = 40,389,047.12
  5. Step 5: Solve for x
    x = 40,389,047.12/9,111.25
  6. Step 6: Final answer
    x = 4,432.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.