Home / 13,557.74-18,705.40-7,588.46

Finding the Fourth Proportional to 13,557.74, 18,705.40 and 7,588.46

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Solution

The fourth proportional to 13,557.74, 18,705.40 and 7,588.46 is: 10,469.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.74 : 18,705.40 = 7,588.46 : x
  2. Step 2: Convert to fraction form
    13,557.74/18,705.40 = 7,588.46/x
  3. Step 3: Cross multiply
    13,557.74x = 18,705.40 × 7,588.46
  4. Step 4: Simplify right side
    13,557.74x = 141,945,179.68
  5. Step 5: Solve for x
    x = 141,945,179.68/13,557.74
  6. Step 6: Final answer
    x = 10,469.68

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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.