Home / 18,188.90-27,234.75-10,386.98

Finding the Fourth Proportional to 18,188.90, 27,234.75 and 10,386.98

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Solution

The fourth proportional to 18,188.90, 27,234.75 and 10,386.98 is: 15,552.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,188.90 : 27,234.75 = 10,386.98 : x
  2. Step 2: Convert to fraction form
    18,188.90/27,234.75 = 10,386.98/x
  3. Step 3: Cross multiply
    18,188.90x = 27,234.75 × 10,386.98
  4. Step 4: Simplify right side
    18,188.90x = 282,886,803.56
  5. Step 5: Solve for x
    x = 282,886,803.56/18,188.90
  6. Step 6: Final answer
    x = 15,552.72

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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.