Home / 7,572.56-10,449.42-4,215.12

Finding the Fourth Proportional to 7,572.56, 10,449.42 and 4,215.12

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Solution

The fourth proportional to 7,572.56, 10,449.42 and 4,215.12 is: 5,816.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,572.56 : 10,449.42 = 4,215.12 : x
  2. Step 2: Convert to fraction form
    7,572.56/10,449.42 = 4,215.12/x
  3. Step 3: Cross multiply
    7,572.56x = 10,449.42 × 4,215.12
  4. Step 4: Simplify right side
    7,572.56x = 44,045,559.23
  5. Step 5: Solve for x
    x = 44,045,559.23/7,572.56
  6. Step 6: Final answer
    x = 5,816.47

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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.