Home / 15,414.36-21,271.08-9,040.08

Finding the Fourth Proportional to 15,414.36, 21,271.08 and 9,040.08

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Solution

The fourth proportional to 15,414.36, 21,271.08 and 9,040.08 is: 12,474.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,414.36 : 21,271.08 = 9,040.08 : x
  2. Step 2: Convert to fraction form
    15,414.36/21,271.08 = 9,040.08/x
  3. Step 3: Cross multiply
    15,414.36x = 21,271.08 × 9,040.08
  4. Step 4: Simplify right side
    15,414.36x = 192,292,264.89
  5. Step 5: Solve for x
    x = 192,292,264.89/15,414.36
  6. Step 6: Final answer
    x = 12,474.88

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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.