Home / 7,216.40-9,957.16-4,071.44

Finding the Fourth Proportional to 7,216.40, 9,957.16 and 4,071.44

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Solution

The fourth proportional to 7,216.40, 9,957.16 and 4,071.44 is: 5,617.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216.40 : 9,957.16 = 4,071.44 : x
  2. Step 2: Convert to fraction form
    7,216.40/9,957.16 = 4,071.44/x
  3. Step 3: Cross multiply
    7,216.40x = 9,957.16 × 4,071.44
  4. Step 4: Simplify right side
    7,216.40x = 40,539,979.51
  5. Step 5: Solve for x
    x = 40,539,979.51/7,216.40
  6. Step 6: Final answer
    x = 5,617.76

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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.