Home / 10,975.30-16,458.90-5,426.80

Finding the Fourth Proportional to 10,975.30, 16,458.90 and 5,426.80

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Solution

The fourth proportional to 10,975.30, 16,458.90 and 5,426.80 is: 8,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,975.30 : 16,458.90 = 5,426.80 : x
  2. Step 2: Convert to fraction form
    10,975.30/16,458.90 = 5,426.80/x
  3. Step 3: Cross multiply
    10,975.30x = 16,458.90 × 5,426.80
  4. Step 4: Simplify right side
    10,975.30x = 89,319,158.52
  5. Step 5: Solve for x
    x = 89,319,158.52/10,975.30
  6. Step 6: Final answer
    x = 8,138.20

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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.