Home / 10,966.78-16,428.30-9,326.80

Finding the Fourth Proportional to 10,966.78, 16,428.30 and 9,326.80

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Solution

The fourth proportional to 10,966.78, 16,428.30 and 9,326.80 is: 13,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,966.78 : 16,428.30 = 9,326.80 : x
  2. Step 2: Convert to fraction form
    10,966.78/16,428.30 = 9,326.80/x
  3. Step 3: Cross multiply
    10,966.78x = 16,428.30 × 9,326.80
  4. Step 4: Simplify right side
    10,966.78x = 153,223,468.44
  5. Step 5: Solve for x
    x = 153,223,468.44/10,966.78
  6. Step 6: Final answer
    x = 13,971.60

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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.