Home / 10,326.09-15,484.47-2,928.81

Finding the Fourth Proportional to 10,326.09, 15,484.47 and 2,928.81

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Solution

The fourth proportional to 10,326.09, 15,484.47 and 2,928.81 is: 4,391.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,326.09 : 15,484.47 = 2,928.81 : x
  2. Step 2: Convert to fraction form
    10,326.09/15,484.47 = 2,928.81/x
  3. Step 3: Cross multiply
    10,326.09x = 15,484.47 × 2,928.81
  4. Step 4: Simplify right side
    10,326.09x = 45,351,070.58
  5. Step 5: Solve for x
    x = 45,351,070.58/10,326.09
  6. Step 6: Final answer
    x = 4,391.89

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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.