Home / 7,322.20-10,115.63-5,091.76

Finding the Fourth Proportional to 7,322.20, 10,115.63 and 5,091.76

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Solution

The fourth proportional to 7,322.20, 10,115.63 and 5,091.76 is: 7,034.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,322.20 : 10,115.63 = 5,091.76 : x
  2. Step 2: Convert to fraction form
    7,322.20/10,115.63 = 5,091.76/x
  3. Step 3: Cross multiply
    7,322.20x = 10,115.63 × 5,091.76
  4. Step 4: Simplify right side
    7,322.20x = 51,506,395.13
  5. Step 5: Solve for x
    x = 51,506,395.13/7,322.20
  6. Step 6: Final answer
    x = 7,034.28

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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.