Home / 14,077.20-21,140.10-7,516.20

Finding the Fourth Proportional to 14,077.20, 21,140.10 and 7,516.20

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Solution

The fourth proportional to 14,077.20, 21,140.10 and 7,516.20 is: 11,287.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,077.20 : 21,140.10 = 7,516.20 : x
  2. Step 2: Convert to fraction form
    14,077.20/21,140.10 = 7,516.20/x
  3. Step 3: Cross multiply
    14,077.20x = 21,140.10 × 7,516.20
  4. Step 4: Simplify right side
    14,077.20x = 158,893,219.62
  5. Step 5: Solve for x
    x = 158,893,219.62/14,077.20
  6. Step 6: Final answer
    x = 11,287.27

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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.