Home / 10,318.35-14,206.95-9,105.78

Finding the Fourth Proportional to 10,318.35, 14,206.95 and 9,105.78

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Solution

The fourth proportional to 10,318.35, 14,206.95 and 9,105.78 is: 12,537.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,318.35 : 14,206.95 = 9,105.78 : x
  2. Step 2: Convert to fraction form
    10,318.35/14,206.95 = 9,105.78/x
  3. Step 3: Cross multiply
    10,318.35x = 14,206.95 × 9,105.78
  4. Step 4: Simplify right side
    10,318.35x = 129,365,361.17
  5. Step 5: Solve for x
    x = 129,365,361.17/10,318.35
  6. Step 6: Final answer
    x = 12,537.41

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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.