Home / 9,678.06-13,356.49-5,699.95

Finding the Fourth Proportional to 9,678.06, 13,356.49 and 5,699.95

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Solution

The fourth proportional to 9,678.06, 13,356.49 and 5,699.95 is: 7,866.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,678.06 : 13,356.49 = 5,699.95 : x
  2. Step 2: Convert to fraction form
    9,678.06/13,356.49 = 5,699.95/x
  3. Step 3: Cross multiply
    9,678.06x = 13,356.49 × 5,699.95
  4. Step 4: Simplify right side
    9,678.06x = 76,131,277.53
  5. Step 5: Solve for x
    x = 76,131,277.53/9,678.06
  6. Step 6: Final answer
    x = 7,866.38

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Double scale
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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.