Home / 10,076.67-15,117.39-9,909.32

Finding the Fourth Proportional to 10,076.67, 15,117.39 and 9,909.32

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Solution

The fourth proportional to 10,076.67, 15,117.39 and 9,909.32 is: 14,866.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,076.67 : 15,117.39 = 9,909.32 : x
  2. Step 2: Convert to fraction form
    10,076.67/15,117.39 = 9,909.32/x
  3. Step 3: Cross multiply
    10,076.67x = 15,117.39 × 9,909.32
  4. Step 4: Simplify right side
    10,076.67x = 149,802,979.49
  5. Step 5: Solve for x
    x = 149,802,979.49/10,076.67
  6. Step 6: Final answer
    x = 14,866.32

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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.