Home / 13,040.90-19,551.78-8,366.19

Finding the Fourth Proportional to 13,040.90, 19,551.78 and 8,366.19

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Solution

The fourth proportional to 13,040.90, 19,551.78 and 8,366.19 is: 12,543.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,040.90 : 19,551.78 = 8,366.19 : x
  2. Step 2: Convert to fraction form
    13,040.90/19,551.78 = 8,366.19/x
  3. Step 3: Cross multiply
    13,040.90x = 19,551.78 × 8,366.19
  4. Step 4: Simplify right side
    13,040.90x = 163,573,833.00
  5. Step 5: Solve for x
    x = 163,573,833.00/13,040.90
  6. Step 6: Final answer
    x = 12,543.14

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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.