Home / 7,215.67-9,956.48-4,071.25

Finding the Fourth Proportional to 7,215.67, 9,956.48 and 4,071.25

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Solution

The fourth proportional to 7,215.67, 9,956.48 and 4,071.25 is: 5,617.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.67 : 9,956.48 = 4,071.25 : x
  2. Step 2: Convert to fraction form
    7,215.67/9,956.48 = 4,071.25/x
  3. Step 3: Cross multiply
    7,215.67x = 9,956.48 × 4,071.25
  4. Step 4: Simplify right side
    7,215.67x = 40,535,319.20
  5. Step 5: Solve for x
    x = 40,535,319.20/7,215.67
  6. Step 6: Final answer
    x = 5,617.68

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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.