Home / 7,772.52-10,718.64-5,117.28

Finding the Fourth Proportional to 7,772.52, 10,718.64 and 5,117.28

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Solution

The fourth proportional to 7,772.52, 10,718.64 and 5,117.28 is: 7,056.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.52 : 10,718.64 = 5,117.28 : x
  2. Step 2: Convert to fraction form
    7,772.52/10,718.64 = 5,117.28/x
  3. Step 3: Cross multiply
    7,772.52x = 10,718.64 × 5,117.28
  4. Step 4: Simplify right side
    7,772.52x = 54,850,282.10
  5. Step 5: Solve for x
    x = 54,850,282.10/7,772.52
  6. Step 6: Final answer
    x = 7,056.95

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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.