Home / 14,129.10-21,195.54-4,765.14

Finding the Fourth Proportional to 14,129.10, 21,195.54 and 4,765.14

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Solution

The fourth proportional to 14,129.10, 21,195.54 and 4,765.14 is: 7,148.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129.10 : 21,195.54 = 4,765.14 : x
  2. Step 2: Convert to fraction form
    14,129.10/21,195.54 = 4,765.14/x
  3. Step 3: Cross multiply
    14,129.10x = 21,195.54 × 4,765.14
  4. Step 4: Simplify right side
    14,129.10x = 100,999,715.48
  5. Step 5: Solve for x
    x = 100,999,715.48/14,129.10
  6. Step 6: Final answer
    x = 7,148.35

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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.