Home / 13,869.93-19,139.14-7,901.25

Finding the Fourth Proportional to 13,869.93, 19,139.14 and 7,901.25

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Solution

The fourth proportional to 13,869.93, 19,139.14 and 7,901.25 is: 10,902.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869.93 : 19,139.14 = 7,901.25 : x
  2. Step 2: Convert to fraction form
    13,869.93/19,139.14 = 7,901.25/x
  3. Step 3: Cross multiply
    13,869.93x = 19,139.14 × 7,901.25
  4. Step 4: Simplify right side
    13,869.93x = 151,223,023.59
  5. Step 5: Solve for x
    x = 151,223,023.59/13,869.93
  6. Step 6: Final answer
    x = 10,902.94

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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.