Home / 9,687.77-13,370.54-5,440.59

Finding the Fourth Proportional to 9,687.77, 13,370.54 and 5,440.59

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Solution

The fourth proportional to 9,687.77, 13,370.54 and 5,440.59 is: 7,508.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,687.77 : 13,370.54 = 5,440.59 : x
  2. Step 2: Convert to fraction form
    9,687.77/13,370.54 = 5,440.59/x
  3. Step 3: Cross multiply
    9,687.77x = 13,370.54 × 5,440.59
  4. Step 4: Simplify right side
    9,687.77x = 72,743,599.02
  5. Step 5: Solve for x
    x = 72,743,599.02/9,687.77
  6. Step 6: Final answer
    x = 7,508.81

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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.