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Finding the Fourth Proportional to 7,236.64, 9,976.93 and 6,498.55

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Solution

The fourth proportional to 7,236.64, 9,976.93 and 6,498.55 is: 8,959.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,236.64 : 9,976.93 = 6,498.55 : x
  2. Step 2: Convert to fraction form
    7,236.64/9,976.93 = 6,498.55/x
  3. Step 3: Cross multiply
    7,236.64x = 9,976.93 × 6,498.55
  4. Step 4: Simplify right side
    7,236.64x = 64,835,578.45
  5. Step 5: Solve for x
    x = 64,835,578.45/7,236.64
  6. Step 6: Final answer
    x = 8,959.35

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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.