Home / 14,228.80-19,615.98-8,920.06

Finding the Fourth Proportional to 14,228.80, 19,615.98 and 8,920.06

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Solution

The fourth proportional to 14,228.80, 19,615.98 and 8,920.06 is: 12,297.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,228.80 : 19,615.98 = 8,920.06 : x
  2. Step 2: Convert to fraction form
    14,228.80/19,615.98 = 8,920.06/x
  3. Step 3: Cross multiply
    14,228.80x = 19,615.98 × 8,920.06
  4. Step 4: Simplify right side
    14,228.80x = 174,975,718.56
  5. Step 5: Solve for x
    x = 174,975,718.56/14,228.80
  6. Step 6: Final answer
    x = 12,297.29

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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.