Home / 7,807.32-10,781.37-5,017.68

Finding the Fourth Proportional to 7,807.32, 10,781.37 and 5,017.68

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Solution

The fourth proportional to 7,807.32, 10,781.37 and 5,017.68 is: 6,929.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,807.32 : 10,781.37 = 5,017.68 : x
  2. Step 2: Convert to fraction form
    7,807.32/10,781.37 = 5,017.68/x
  3. Step 3: Cross multiply
    7,807.32x = 10,781.37 × 5,017.68
  4. Step 4: Simplify right side
    7,807.32x = 54,097,464.62
  5. Step 5: Solve for x
    x = 54,097,464.62/7,807.32
  6. Step 6: Final answer
    x = 6,929.07

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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.