Home / 13,809.24-19,056.58-7,521.60

Finding the Fourth Proportional to 13,809.24, 19,056.58 and 7,521.60

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Solution

The fourth proportional to 13,809.24, 19,056.58 and 7,521.60 is: 10,379.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.24 : 19,056.58 = 7,521.60 : x
  2. Step 2: Convert to fraction form
    13,809.24/19,056.58 = 7,521.60/x
  3. Step 3: Cross multiply
    13,809.24x = 19,056.58 × 7,521.60
  4. Step 4: Simplify right side
    13,809.24x = 143,335,972.13
  5. Step 5: Solve for x
    x = 143,335,972.13/13,809.24
  6. Step 6: Final answer
    x = 10,379.71

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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.