Home / 8,983.12-12,397.64-5,206.20

Finding the Fourth Proportional to 8,983.12, 12,397.64 and 5,206.20

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Solution

The fourth proportional to 8,983.12, 12,397.64 and 5,206.20 is: 7,185.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,983.12 : 12,397.64 = 5,206.20 : x
  2. Step 2: Convert to fraction form
    8,983.12/12,397.64 = 5,206.20/x
  3. Step 3: Cross multiply
    8,983.12x = 12,397.64 × 5,206.20
  4. Step 4: Simplify right side
    8,983.12x = 64,544,593.37
  5. Step 5: Solve for x
    x = 64,544,593.37/8,983.12
  6. Step 6: Final answer
    x = 7,185.10

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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.