Home / 9,315.54-13,965.78-3,071.66

Finding the Fourth Proportional to 9,315.54, 13,965.78 and 3,071.66

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Solution

The fourth proportional to 9,315.54, 13,965.78 and 3,071.66 is: 4,605.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315.54 : 13,965.78 = 3,071.66 : x
  2. Step 2: Convert to fraction form
    9,315.54/13,965.78 = 3,071.66/x
  3. Step 3: Cross multiply
    9,315.54x = 13,965.78 × 3,071.66
  4. Step 4: Simplify right side
    9,315.54x = 42,898,127.79
  5. Step 5: Solve for x
    x = 42,898,127.79/9,315.54
  6. Step 6: Final answer
    x = 4,605.01

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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.