Home / 6,869.64-9,475.25-4,218.51

Finding the Fourth Proportional to 6,869.64, 9,475.25 and 4,218.51

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Solution

The fourth proportional to 6,869.64, 9,475.25 and 4,218.51 is: 5,818.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,869.64 : 9,475.25 = 4,218.51 : x
  2. Step 2: Convert to fraction form
    6,869.64/9,475.25 = 4,218.51/x
  3. Step 3: Cross multiply
    6,869.64x = 9,475.25 × 4,218.51
  4. Step 4: Simplify right side
    6,869.64x = 39,971,415.78
  5. Step 5: Solve for x
    x = 39,971,415.78/6,869.64
  6. Step 6: Final answer
    x = 5,818.56

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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.