Home / 7,727.45-10,656.02-6,612.08

Finding the Fourth Proportional to 7,727.45, 10,656.02 and 6,612.08

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Solution

The fourth proportional to 7,727.45, 10,656.02 and 6,612.08 is: 9,117.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727.45 : 10,656.02 = 6,612.08 : x
  2. Step 2: Convert to fraction form
    7,727.45/10,656.02 = 6,612.08/x
  3. Step 3: Cross multiply
    7,727.45x = 10,656.02 × 6,612.08
  4. Step 4: Simplify right side
    7,727.45x = 70,458,419.97
  5. Step 5: Solve for x
    x = 70,458,419.97/7,727.45
  6. Step 6: Final answer
    x = 9,117.95

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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.