Home / 11,290.46-15,582.29-6,816.74

Finding the Fourth Proportional to 11,290.46, 15,582.29 and 6,816.74

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Solution

The fourth proportional to 11,290.46, 15,582.29 and 6,816.74 is: 9,407.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,290.46 : 15,582.29 = 6,816.74 : x
  2. Step 2: Convert to fraction form
    11,290.46/15,582.29 = 6,816.74/x
  3. Step 3: Cross multiply
    11,290.46x = 15,582.29 × 6,816.74
  4. Step 4: Simplify right side
    11,290.46x = 106,220,419.53
  5. Step 5: Solve for x
    x = 106,220,419.53/11,290.46
  6. Step 6: Final answer
    x = 9,407.98

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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.