Home / 10,890.25-16,321.02-4,312.85

Finding the Fourth Proportional to 10,890.25, 16,321.02 and 4,312.85

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Solution

The fourth proportional to 10,890.25, 16,321.02 and 4,312.85 is: 6,463.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890.25 : 16,321.02 = 4,312.85 : x
  2. Step 2: Convert to fraction form
    10,890.25/16,321.02 = 4,312.85/x
  3. Step 3: Cross multiply
    10,890.25x = 16,321.02 × 4,312.85
  4. Step 4: Simplify right side
    10,890.25x = 70,390,025.46
  5. Step 5: Solve for x
    x = 70,390,025.46/10,890.25
  6. Step 6: Final answer
    x = 6,463.58

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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.