Home / 13,939.01-19,244.51-9,688.73

Finding the Fourth Proportional to 13,939.01, 19,244.51 and 9,688.73

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Solution

The fourth proportional to 13,939.01, 19,244.51 and 9,688.73 is: 13,376.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.01 : 19,244.51 = 9,688.73 : x
  2. Step 2: Convert to fraction form
    13,939.01/19,244.51 = 9,688.73/x
  3. Step 3: Cross multiply
    13,939.01x = 19,244.51 × 9,688.73
  4. Step 4: Simplify right side
    13,939.01x = 186,454,812.93
  5. Step 5: Solve for x
    x = 186,454,812.93/13,939.01
  6. Step 6: Final answer
    x = 13,376.47

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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.