Home / 13,948.70-19,251.95-7,900.02

Finding the Fourth Proportional to 13,948.70, 19,251.95 and 7,900.02

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Solution

The fourth proportional to 13,948.70, 19,251.95 and 7,900.02 is: 10,903.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.70 : 19,251.95 = 7,900.02 : x
  2. Step 2: Convert to fraction form
    13,948.70/19,251.95 = 7,900.02/x
  3. Step 3: Cross multiply
    13,948.70x = 19,251.95 × 7,900.02
  4. Step 4: Simplify right side
    13,948.70x = 152,090,750.54
  5. Step 5: Solve for x
    x = 152,090,750.54/13,948.70
  6. Step 6: Final answer
    x = 10,903.58

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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.