Home / 7,111.56-10,708.95-5,275.74

Finding the Fourth Proportional to 7,111.56, 10,708.95 and 5,275.74

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Solution

The fourth proportional to 7,111.56, 10,708.95 and 5,275.74 is: 7,944.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111.56 : 10,708.95 = 5,275.74 : x
  2. Step 2: Convert to fraction form
    7,111.56/10,708.95 = 5,275.74/x
  3. Step 3: Cross multiply
    7,111.56x = 10,708.95 × 5,275.74
  4. Step 4: Simplify right side
    7,111.56x = 56,497,635.87
  5. Step 5: Solve for x
    x = 56,497,635.87/7,111.56
  6. Step 6: Final answer
    x = 7,944.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.