Home / 8,681.32-11,979.51-4,904.81

Finding the Fourth Proportional to 8,681.32, 11,979.51 and 4,904.81

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Solution

The fourth proportional to 8,681.32, 11,979.51 and 4,904.81 is: 6,768.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.32 : 11,979.51 = 4,904.81 : x
  2. Step 2: Convert to fraction form
    8,681.32/11,979.51 = 4,904.81/x
  3. Step 3: Cross multiply
    8,681.32x = 11,979.51 × 4,904.81
  4. Step 4: Simplify right side
    8,681.32x = 58,757,250.39
  5. Step 5: Solve for x
    x = 58,757,250.39/8,681.32
  6. Step 6: Final answer
    x = 6,768.24

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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.