Home / 9,489.76-13,095.84-5,240.68

Finding the Fourth Proportional to 9,489.76, 13,095.84 and 5,240.68

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Solution

The fourth proportional to 9,489.76, 13,095.84 and 5,240.68 is: 7,232.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,489.76 : 13,095.84 = 5,240.68 : x
  2. Step 2: Convert to fraction form
    9,489.76/13,095.84 = 5,240.68/x
  3. Step 3: Cross multiply
    9,489.76x = 13,095.84 × 5,240.68
  4. Step 4: Simplify right side
    9,489.76x = 68,631,106.77
  5. Step 5: Solve for x
    x = 68,631,106.77/9,489.76
  6. Step 6: Final answer
    x = 7,232.12

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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.