Home / 13,873.15-19,140.25-7,900.58

Finding the Fourth Proportional to 13,873.15, 19,140.25 and 7,900.58

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Solution

The fourth proportional to 13,873.15, 19,140.25 and 7,900.58 is: 10,900.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,873.15 : 19,140.25 = 7,900.58 : x
  2. Step 2: Convert to fraction form
    13,873.15/19,140.25 = 7,900.58/x
  3. Step 3: Cross multiply
    13,873.15x = 19,140.25 × 7,900.58
  4. Step 4: Simplify right side
    13,873.15x = 151,219,076.35
  5. Step 5: Solve for x
    x = 151,219,076.35/13,873.15
  6. Step 6: Final answer
    x = 10,900.13

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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.