Home / 14,129.95-21,201.81-5,812.46

Finding the Fourth Proportional to 14,129.95, 21,201.81 and 5,812.46

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Solution

The fourth proportional to 14,129.95, 21,201.81 and 5,812.46 is: 8,721.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129.95 : 21,201.81 = 5,812.46 : x
  2. Step 2: Convert to fraction form
    14,129.95/21,201.81 = 5,812.46/x
  3. Step 3: Cross multiply
    14,129.95x = 21,201.81 × 5,812.46
  4. Step 4: Simplify right side
    14,129.95x = 123,234,672.55
  5. Step 5: Solve for x
    x = 123,234,672.55/14,129.95
  6. Step 6: Final answer
    x = 8,721.52

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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.