Home / 13,726.07-18,941.99-7,438.45

Finding the Fourth Proportional to 13,726.07, 18,941.99 and 7,438.45

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Solution

The fourth proportional to 13,726.07, 18,941.99 and 7,438.45 is: 10,265.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,726.07 : 18,941.99 = 7,438.45 : x
  2. Step 2: Convert to fraction form
    13,726.07/18,941.99 = 7,438.45/x
  3. Step 3: Cross multiply
    13,726.07x = 18,941.99 × 7,438.45
  4. Step 4: Simplify right side
    13,726.07x = 140,899,045.52
  5. Step 5: Solve for x
    x = 140,899,045.52/13,726.07
  6. Step 6: Final answer
    x = 10,265.07

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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.