Home / 14,147.88-19,521.99-7,860.26

Finding the Fourth Proportional to 14,147.88, 19,521.99 and 7,860.26

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Solution

The fourth proportional to 14,147.88, 19,521.99 and 7,860.26 is: 10,845.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.88 : 19,521.99 = 7,860.26 : x
  2. Step 2: Convert to fraction form
    14,147.88/19,521.99 = 7,860.26/x
  3. Step 3: Cross multiply
    14,147.88x = 19,521.99 × 7,860.26
  4. Step 4: Simplify right side
    14,147.88x = 153,447,819.51
  5. Step 5: Solve for x
    x = 153,447,819.51/14,147.88
  6. Step 6: Final answer
    x = 10,845.99

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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.