Home / 14,338.55-21,510.51-6,440.87

Finding the Fourth Proportional to 14,338.55, 21,510.51 and 6,440.87

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Solution

The fourth proportional to 14,338.55, 21,510.51 and 6,440.87 is: 9,662.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,338.55 : 21,510.51 = 6,440.87 : x
  2. Step 2: Convert to fraction form
    14,338.55/21,510.51 = 6,440.87/x
  3. Step 3: Cross multiply
    14,338.55x = 21,510.51 × 6,440.87
  4. Step 4: Simplify right side
    14,338.55x = 138,546,398.54
  5. Step 5: Solve for x
    x = 138,546,398.54/14,338.55
  6. Step 6: Final answer
    x = 9,662.51

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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.