Home / 7,123.28-10,678.44-5,272.16

Finding the Fourth Proportional to 7,123.28, 10,678.44 and 5,272.16

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Solution

The fourth proportional to 7,123.28, 10,678.44 and 5,272.16 is: 7,903.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,123.28 : 10,678.44 = 5,272.16 : x
  2. Step 2: Convert to fraction form
    7,123.28/10,678.44 = 5,272.16/x
  3. Step 3: Cross multiply
    7,123.28x = 10,678.44 × 5,272.16
  4. Step 4: Simplify right side
    7,123.28x = 56,298,444.23
  5. Step 5: Solve for x
    x = 56,298,444.23/7,123.28
  6. Step 6: Final answer
    x = 7,903.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.