Home / 8,326.19-11,491.74-5,345.79

Finding the Fourth Proportional to 8,326.19, 11,491.74 and 5,345.79

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Solution

The fourth proportional to 8,326.19, 11,491.74 and 5,345.79 is: 7,378.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,326.19 : 11,491.74 = 5,345.79 : x
  2. Step 2: Convert to fraction form
    8,326.19/11,491.74 = 5,345.79/x
  3. Step 3: Cross multiply
    8,326.19x = 11,491.74 × 5,345.79
  4. Step 4: Simplify right side
    8,326.19x = 61,432,428.77
  5. Step 5: Solve for x
    x = 61,432,428.77/8,326.19
  6. Step 6: Final answer
    x = 7,378.22

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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.