Home / 6,869.50-9,479.52-4,216.36

Finding the Fourth Proportional to 6,869.50, 9,479.52 and 4,216.36

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Solution

The fourth proportional to 6,869.50, 9,479.52 and 4,216.36 is: 5,818.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,869.50 : 9,479.52 = 4,216.36 : x
  2. Step 2: Convert to fraction form
    6,869.50/9,479.52 = 4,216.36/x
  3. Step 3: Cross multiply
    6,869.50x = 9,479.52 × 4,216.36
  4. Step 4: Simplify right side
    6,869.50x = 39,969,068.95
  5. Step 5: Solve for x
    x = 39,969,068.95/6,869.50
  6. Step 6: Final answer
    x = 5,818.34

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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.