Home / 13,808.88-19,056.47-7,521.26

Finding the Fourth Proportional to 13,808.88, 19,056.47 and 7,521.26

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Solution

The fourth proportional to 13,808.88, 19,056.47 and 7,521.26 is: 10,379.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,808.88 : 19,056.47 = 7,521.26 : x
  2. Step 2: Convert to fraction form
    13,808.88/19,056.47 = 7,521.26/x
  3. Step 3: Cross multiply
    13,808.88x = 19,056.47 × 7,521.26
  4. Step 4: Simplify right side
    13,808.88x = 143,328,532.66
  5. Step 5: Solve for x
    x = 143,328,532.66/13,808.88
  6. Step 6: Final answer
    x = 10,379.45

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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.