Home / 11,688.79-17,512.01-5,368.95

Finding the Fourth Proportional to 11,688.79, 17,512.01 and 5,368.95

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Solution

The fourth proportional to 11,688.79, 17,512.01 and 5,368.95 is: 8,043.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.79 : 17,512.01 = 5,368.95 : x
  2. Step 2: Convert to fraction form
    11,688.79/17,512.01 = 5,368.95/x
  3. Step 3: Cross multiply
    11,688.79x = 17,512.01 × 5,368.95
  4. Step 4: Simplify right side
    11,688.79x = 94,021,106.09
  5. Step 5: Solve for x
    x = 94,021,106.09/11,688.79
  6. Step 6: Final answer
    x = 8,043.70

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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.