Home / 8,678.28-12,964.66-5,533.22

Finding the Fourth Proportional to 8,678.28, 12,964.66 and 5,533.22

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Solution

The fourth proportional to 8,678.28, 12,964.66 and 5,533.22 is: 8,266.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.28 : 12,964.66 = 5,533.22 : x
  2. Step 2: Convert to fraction form
    8,678.28/12,964.66 = 5,533.22/x
  3. Step 3: Cross multiply
    8,678.28x = 12,964.66 × 5,533.22
  4. Step 4: Simplify right side
    8,678.28x = 71,736,316.01
  5. Step 5: Solve for x
    x = 71,736,316.01/8,678.28
  6. Step 6: Final answer
    x = 8,266.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.