Home / 13,860.26-19,125.06-7,810.24

Finding the Fourth Proportional to 13,860.26, 19,125.06 and 7,810.24

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Solution

The fourth proportional to 13,860.26, 19,125.06 and 7,810.24 is: 10,776.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.26 : 19,125.06 = 7,810.24 : x
  2. Step 2: Convert to fraction form
    13,860.26/19,125.06 = 7,810.24/x
  3. Step 3: Cross multiply
    13,860.26x = 19,125.06 × 7,810.24
  4. Step 4: Simplify right side
    13,860.26x = 149,371,260.80
  5. Step 5: Solve for x
    x = 149,371,260.80/13,860.26
  6. Step 6: Final answer
    x = 10,776.95

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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.