Home / 10,098.87-13,921.83-6,690.18

Finding the Fourth Proportional to 10,098.87, 13,921.83 and 6,690.18

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Solution

The fourth proportional to 10,098.87, 13,921.83 and 6,690.18 is: 9,222.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,098.87 : 13,921.83 = 6,690.18 : x
  2. Step 2: Convert to fraction form
    10,098.87/13,921.83 = 6,690.18/x
  3. Step 3: Cross multiply
    10,098.87x = 13,921.83 × 6,690.18
  4. Step 4: Simplify right side
    10,098.87x = 93,139,548.63
  5. Step 5: Solve for x
    x = 93,139,548.63/10,098.87
  6. Step 6: Final answer
    x = 9,222.77

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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.