Home / 10,889.47-16,312.34-9,216.42

Finding the Fourth Proportional to 10,889.47, 16,312.34 and 9,216.42

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Solution

The fourth proportional to 10,889.47, 16,312.34 and 9,216.42 is: 13,806.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.47 : 16,312.34 = 9,216.42 : x
  2. Step 2: Convert to fraction form
    10,889.47/16,312.34 = 9,216.42/x
  3. Step 3: Cross multiply
    10,889.47x = 16,312.34 × 9,216.42
  4. Step 4: Simplify right side
    10,889.47x = 150,341,286.65
  5. Step 5: Solve for x
    x = 150,341,286.65/10,889.47
  6. Step 6: Final answer
    x = 13,806.11

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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.