Home / 15,022.29-20,706.87-11,830.53

Finding the Fourth Proportional to 15,022.29, 20,706.87 and 11,830.53

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Solution

The fourth proportional to 15,022.29, 20,706.87 and 11,830.53 is: 16,307.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,022.29 : 20,706.87 = 11,830.53 : x
  2. Step 2: Convert to fraction form
    15,022.29/20,706.87 = 11,830.53/x
  3. Step 3: Cross multiply
    15,022.29x = 20,706.87 × 11,830.53
  4. Step 4: Simplify right side
    15,022.29x = 244,973,246.74
  5. Step 5: Solve for x
    x = 244,973,246.74/15,022.29
  6. Step 6: Final answer
    x = 16,307.32

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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.