Home / 7,485.16-10,331.68-5,247.59

Finding the Fourth Proportional to 7,485.16, 10,331.68 and 5,247.59

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Solution

The fourth proportional to 7,485.16, 10,331.68 and 5,247.59 is: 7,243.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.16 : 10,331.68 = 5,247.59 : x
  2. Step 2: Convert to fraction form
    7,485.16/10,331.68 = 5,247.59/x
  3. Step 3: Cross multiply
    7,485.16x = 10,331.68 × 5,247.59
  4. Step 4: Simplify right side
    7,485.16x = 54,216,350.95
  5. Step 5: Solve for x
    x = 54,216,350.95/7,485.16
  6. Step 6: Final answer
    x = 7,243.18

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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.