Home / 11,409.61-17,117.15-3,618.42

Finding the Fourth Proportional to 11,409.61, 17,117.15 and 3,618.42

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Solution

The fourth proportional to 11,409.61, 17,117.15 and 3,618.42 is: 5,428.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,409.61 : 17,117.15 = 3,618.42 : x
  2. Step 2: Convert to fraction form
    11,409.61/17,117.15 = 3,618.42/x
  3. Step 3: Cross multiply
    11,409.61x = 17,117.15 × 3,618.42
  4. Step 4: Simplify right side
    11,409.61x = 61,937,062.08
  5. Step 5: Solve for x
    x = 61,937,062.08/11,409.61
  6. Step 6: Final answer
    x = 5,428.50

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1.5x scale

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.