Home / 10,943.80-16,415.70-9,518.20

Finding the Fourth Proportional to 10,943.80, 16,415.70 and 9,518.20

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Solution

The fourth proportional to 10,943.80, 16,415.70 and 9,518.20 is: 14,277.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,943.80 : 16,415.70 = 9,518.20 : x
  2. Step 2: Convert to fraction form
    10,943.80/16,415.70 = 9,518.20/x
  3. Step 3: Cross multiply
    10,943.80x = 16,415.70 × 9,518.20
  4. Step 4: Simplify right side
    10,943.80x = 156,247,915.74
  5. Step 5: Solve for x
    x = 156,247,915.74/10,943.80
  6. Step 6: Final answer
    x = 14,277.30

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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.