Home / 8,931.17-13,393.63-3,664.69

Finding the Fourth Proportional to 8,931.17, 13,393.63 and 3,664.69

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Solution

The fourth proportional to 8,931.17, 13,393.63 and 3,664.69 is: 5,495.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.17 : 13,393.63 = 3,664.69 : x
  2. Step 2: Convert to fraction form
    8,931.17/13,393.63 = 3,664.69/x
  3. Step 3: Cross multiply
    8,931.17x = 13,393.63 × 3,664.69
  4. Step 4: Simplify right side
    8,931.17x = 49,083,501.92
  5. Step 5: Solve for x
    x = 49,083,501.92/8,931.17
  6. Step 6: Final answer
    x = 5,495.75

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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.