Home / 9,884.63-13,642.32-5,635.70

Finding the Fourth Proportional to 9,884.63, 13,642.32 and 5,635.70

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Solution

The fourth proportional to 9,884.63, 13,642.32 and 5,635.70 is: 7,778.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,884.63 : 13,642.32 = 5,635.70 : x
  2. Step 2: Convert to fraction form
    9,884.63/13,642.32 = 5,635.70/x
  3. Step 3: Cross multiply
    9,884.63x = 13,642.32 × 5,635.70
  4. Step 4: Simplify right side
    9,884.63x = 76,884,065.27
  5. Step 5: Solve for x
    x = 76,884,065.27/9,884.63
  6. Step 6: Final answer
    x = 7,778.14

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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.