Home / 13,860.23-19,127.12-7,486.83

Finding the Fourth Proportional to 13,860.23, 19,127.12 and 7,486.83

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Solution

The fourth proportional to 13,860.23, 19,127.12 and 7,486.83 is: 10,331.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.23 : 19,127.12 = 7,486.83 : x
  2. Step 2: Convert to fraction form
    13,860.23/19,127.12 = 7,486.83/x
  3. Step 3: Cross multiply
    13,860.23x = 19,127.12 × 7,486.83
  4. Step 4: Simplify right side
    13,860.23x = 143,201,458.40
  5. Step 5: Solve for x
    x = 143,201,458.40/13,860.23
  6. Step 6: Final answer
    x = 10,331.82

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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.