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Finding the Fourth Proportional to 10,041.80, 15,033.90 and 8,889.80

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Solution

The fourth proportional to 10,041.80, 15,033.90 and 8,889.80 is: 13,309.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,041.80 : 15,033.90 = 8,889.80 : x
  2. Step 2: Convert to fraction form
    10,041.80/15,033.90 = 8,889.80/x
  3. Step 3: Cross multiply
    10,041.80x = 15,033.90 × 8,889.80
  4. Step 4: Simplify right side
    10,041.80x = 133,648,364.22
  5. Step 5: Solve for x
    x = 133,648,364.22/10,041.80
  6. Step 6: Final answer
    x = 13,309.20

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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.