Home / 8,206.95-12,312.38-2,660.30

Finding the Fourth Proportional to 8,206.95, 12,312.38 and 2,660.30

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Solution

The fourth proportional to 8,206.95, 12,312.38 and 2,660.30 is: 3,991.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,206.95 : 12,312.38 = 2,660.30 : x
  2. Step 2: Convert to fraction form
    8,206.95/12,312.38 = 2,660.30/x
  3. Step 3: Cross multiply
    8,206.95x = 12,312.38 × 2,660.30
  4. Step 4: Simplify right side
    8,206.95x = 32,754,624.51
  5. Step 5: Solve for x
    x = 32,754,624.51/8,206.95
  6. Step 6: Final answer
    x = 3,991.08

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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.