Home / 8,313.81-12,470.45-2,470.20

Finding the Fourth Proportional to 8,313.81, 12,470.45 and 2,470.20

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Solution

The fourth proportional to 8,313.81, 12,470.45 and 2,470.20 is: 3,705.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,313.81 : 12,470.45 = 2,470.20 : x
  2. Step 2: Convert to fraction form
    8,313.81/12,470.45 = 2,470.20/x
  3. Step 3: Cross multiply
    8,313.81x = 12,470.45 × 2,470.20
  4. Step 4: Simplify right side
    8,313.81x = 30,804,493.24
  5. Step 5: Solve for x
    x = 30,804,493.24/8,313.81
  6. Step 6: Final answer
    x = 3,705.22

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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.