Home / 12,257.17-18,378.34-5,501.51

Finding the Fourth Proportional to 12,257.17, 18,378.34 and 5,501.51

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Solution

The fourth proportional to 12,257.17, 18,378.34 and 5,501.51 is: 8,248.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257.17 : 18,378.34 = 5,501.51 : x
  2. Step 2: Convert to fraction form
    12,257.17/18,378.34 = 5,501.51/x
  3. Step 3: Cross multiply
    12,257.17x = 18,378.34 × 5,501.51
  4. Step 4: Simplify right side
    12,257.17x = 101,108,621.29
  5. Step 5: Solve for x
    x = 101,108,621.29/12,257.17
  6. Step 6: Final answer
    x = 8,248.94

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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.