Home / 7,886.42-10,873.28-5,197.22

Finding the Fourth Proportional to 7,886.42, 10,873.28 and 5,197.22

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Solution

The fourth proportional to 7,886.42, 10,873.28 and 5,197.22 is: 7,165.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886.42 : 10,873.28 = 5,197.22 : x
  2. Step 2: Convert to fraction form
    7,886.42/10,873.28 = 5,197.22/x
  3. Step 3: Cross multiply
    7,886.42x = 10,873.28 × 5,197.22
  4. Step 4: Simplify right side
    7,886.42x = 56,510,828.28
  5. Step 5: Solve for x
    x = 56,510,828.28/7,886.42
  6. Step 6: Final answer
    x = 7,165.59

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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.