Home / 13,809.25-19,056.84-7,521.64

Finding the Fourth Proportional to 13,809.25, 19,056.84 and 7,521.64

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Solution

The fourth proportional to 13,809.25, 19,056.84 and 7,521.64 is: 10,379.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.25 : 19,056.84 = 7,521.64 : x
  2. Step 2: Convert to fraction form
    13,809.25/19,056.84 = 7,521.64/x
  3. Step 3: Cross multiply
    13,809.25x = 19,056.84 × 7,521.64
  4. Step 4: Simplify right side
    13,809.25x = 143,338,690.02
  5. Step 5: Solve for x
    x = 143,338,690.02/13,809.25
  6. Step 6: Final answer
    x = 10,379.90

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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.