Home / 7,981.20-11,013.86-4,444.32

Finding the Fourth Proportional to 7,981.20, 11,013.86 and 4,444.32

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Solution

The fourth proportional to 7,981.20, 11,013.86 and 4,444.32 is: 6,133.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.20 : 11,013.86 = 4,444.32 : x
  2. Step 2: Convert to fraction form
    7,981.20/11,013.86 = 4,444.32/x
  3. Step 3: Cross multiply
    7,981.20x = 11,013.86 × 4,444.32
  4. Step 4: Simplify right side
    7,981.20x = 48,949,118.28
  5. Step 5: Solve for x
    x = 48,949,118.28/7,981.20
  6. Step 6: Final answer
    x = 6,133.05

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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.