Home / 8,710.16-12,019.68-5,173.28

Finding the Fourth Proportional to 8,710.16, 12,019.68 and 5,173.28

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Solution

The fourth proportional to 8,710.16, 12,019.68 and 5,173.28 is: 7,138.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,710.16 : 12,019.68 = 5,173.28 : x
  2. Step 2: Convert to fraction form
    8,710.16/12,019.68 = 5,173.28/x
  3. Step 3: Cross multiply
    8,710.16x = 12,019.68 × 5,173.28
  4. Step 4: Simplify right side
    8,710.16x = 62,181,170.15
  5. Step 5: Solve for x
    x = 62,181,170.15/8,710.16
  6. Step 6: Final answer
    x = 7,138.92

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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.