Home / 15,189.12-20,963.00-9,525.40

Finding the Fourth Proportional to 15,189.12, 20,963.00 and 9,525.40

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Solution

The fourth proportional to 15,189.12, 20,963.00 and 9,525.40 is: 13,146.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,189.12 : 20,963.00 = 9,525.40 : x
  2. Step 2: Convert to fraction form
    15,189.12/20,963.00 = 9,525.40/x
  3. Step 3: Cross multiply
    15,189.12x = 20,963.00 × 9,525.40
  4. Step 4: Simplify right side
    15,189.12x = 199,680,931.61
  5. Step 5: Solve for x
    x = 199,680,931.61/15,189.12
  6. Step 6: Final answer
    x = 13,146.31

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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.