Home / 7,215.44-9,956.40-4,071.08

Finding the Fourth Proportional to 7,215.44, 9,956.40 and 4,071.08

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Solution

The fourth proportional to 7,215.44, 9,956.40 and 4,071.08 is: 5,617.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.44 : 9,956.40 = 4,071.08 : x
  2. Step 2: Convert to fraction form
    7,215.44/9,956.40 = 4,071.08/x
  3. Step 3: Cross multiply
    7,215.44x = 9,956.40 × 4,071.08
  4. Step 4: Simplify right side
    7,215.44x = 40,533,300.91
  5. Step 5: Solve for x
    x = 40,533,300.91/7,215.44
  6. Step 6: Final answer
    x = 5,617.58

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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.