Home / 13,726.86-20,574.39-6,315.78

Finding the Fourth Proportional to 13,726.86, 20,574.39 and 6,315.78

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Solution

The fourth proportional to 13,726.86, 20,574.39 and 6,315.78 is: 9,466.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,726.86 : 20,574.39 = 6,315.78 : x
  2. Step 2: Convert to fraction form
    13,726.86/20,574.39 = 6,315.78/x
  3. Step 3: Cross multiply
    13,726.86x = 20,574.39 × 6,315.78
  4. Step 4: Simplify right side
    13,726.86x = 129,943,320.87
  5. Step 5: Solve for x
    x = 129,943,320.87/13,726.86
  6. Step 6: Final answer
    x = 9,466.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.