Home / 13,966.18-19,274.40-7,999.72

Finding the Fourth Proportional to 13,966.18, 19,274.40 and 7,999.72

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Solution

The fourth proportional to 13,966.18, 19,274.40 and 7,999.72 is: 11,040.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,966.18 : 19,274.40 = 7,999.72 : x
  2. Step 2: Convert to fraction form
    13,966.18/19,274.40 = 7,999.72/x
  3. Step 3: Cross multiply
    13,966.18x = 19,274.40 × 7,999.72
  4. Step 4: Simplify right side
    13,966.18x = 154,189,803.17
  5. Step 5: Solve for x
    x = 154,189,803.17/13,966.18
  6. Step 6: Final answer
    x = 11,040.23

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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.