Home / 9,919.90-13,689.51-5,444.15

Finding the Fourth Proportional to 9,919.90, 13,689.51 and 5,444.15

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Solution

The fourth proportional to 9,919.90, 13,689.51 and 5,444.15 is: 7,512.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,919.90 : 13,689.51 = 5,444.15 : x
  2. Step 2: Convert to fraction form
    9,919.90/13,689.51 = 5,444.15/x
  3. Step 3: Cross multiply
    9,919.90x = 13,689.51 × 5,444.15
  4. Step 4: Simplify right side
    9,919.90x = 74,527,657.00
  5. Step 5: Solve for x
    x = 74,527,657.00/9,919.90
  6. Step 6: Final answer
    x = 7,512.94

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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.