Home / 13,889.16-19,166.90-7,601.16

Finding the Fourth Proportional to 13,889.16, 19,166.90 and 7,601.16

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Solution

The fourth proportional to 13,889.16, 19,166.90 and 7,601.16 is: 10,489.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.16 : 19,166.90 = 7,601.16 : x
  2. Step 2: Convert to fraction form
    13,889.16/19,166.90 = 7,601.16/x
  3. Step 3: Cross multiply
    13,889.16x = 19,166.90 × 7,601.16
  4. Step 4: Simplify right side
    13,889.16x = 145,690,673.60
  5. Step 5: Solve for x
    x = 145,690,673.60/13,889.16
  6. Step 6: Final answer
    x = 10,489.52

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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.