Home / 12,210.17-18,313.29-3,445.70

Finding the Fourth Proportional to 12,210.17, 18,313.29 and 3,445.70

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Solution

The fourth proportional to 12,210.17, 18,313.29 and 3,445.70 is: 5,167.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,210.17 : 18,313.29 = 3,445.70 : x
  2. Step 2: Convert to fraction form
    12,210.17/18,313.29 = 3,445.70/x
  3. Step 3: Cross multiply
    12,210.17x = 18,313.29 × 3,445.70
  4. Step 4: Simplify right side
    12,210.17x = 63,102,011.79
  5. Step 5: Solve for x
    x = 63,102,011.79/12,210.17
  6. Step 6: Final answer
    x = 5,167.99

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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.