Home / 10,803.62-14,903.70-9,308.96

Finding the Fourth Proportional to 10,803.62, 14,903.70 and 9,308.96

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Solution

The fourth proportional to 10,803.62, 14,903.70 and 9,308.96 is: 12,841.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,803.62 : 14,903.70 = 9,308.96 : x
  2. Step 2: Convert to fraction form
    10,803.62/14,903.70 = 9,308.96/x
  3. Step 3: Cross multiply
    10,803.62x = 14,903.70 × 9,308.96
  4. Step 4: Simplify right side
    10,803.62x = 138,737,947.15
  5. Step 5: Solve for x
    x = 138,737,947.15/10,803.62
  6. Step 6: Final answer
    x = 12,841.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.