Home / 13,557.97-18,709.09-7,508.01

Finding the Fourth Proportional to 13,557.97, 18,709.09 and 7,508.01

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Solution

The fourth proportional to 13,557.97, 18,709.09 and 7,508.01 is: 10,360.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.97 : 18,709.09 = 7,508.01 : x
  2. Step 2: Convert to fraction form
    13,557.97/18,709.09 = 7,508.01/x
  3. Step 3: Cross multiply
    13,557.97x = 18,709.09 × 7,508.01
  4. Step 4: Simplify right side
    13,557.97x = 140,468,034.81
  5. Step 5: Solve for x
    x = 140,468,034.81/13,557.97
  6. Step 6: Final answer
    x = 10,360.55

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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.