Home / 7,617.84-10,479.60-6,717.12

Finding the Fourth Proportional to 7,617.84, 10,479.60 and 6,717.12

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Solution

The fourth proportional to 7,617.84, 10,479.60 and 6,717.12 is: 9,240.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,617.84 : 10,479.60 = 6,717.12 : x
  2. Step 2: Convert to fraction form
    7,617.84/10,479.60 = 6,717.12/x
  3. Step 3: Cross multiply
    7,617.84x = 10,479.60 × 6,717.12
  4. Step 4: Simplify right side
    7,617.84x = 70,392,730.75
  5. Step 5: Solve for x
    x = 70,392,730.75/7,617.84
  6. Step 6: Final answer
    x = 9,240.51

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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.