Home / 8,316.52-11,476.34-5,172.68

Finding the Fourth Proportional to 8,316.52, 11,476.34 and 5,172.68

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Solution

The fourth proportional to 8,316.52, 11,476.34 and 5,172.68 is: 7,138.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316.52 : 11,476.34 = 5,172.68 : x
  2. Step 2: Convert to fraction form
    8,316.52/11,476.34 = 5,172.68/x
  3. Step 3: Cross multiply
    8,316.52x = 11,476.34 × 5,172.68
  4. Step 4: Simplify right side
    8,316.52x = 59,363,434.39
  5. Step 5: Solve for x
    x = 59,363,434.39/8,316.52
  6. Step 6: Final answer
    x = 7,138.01

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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.