Home / 14,762.78-20,366.21-9,382.34

Finding the Fourth Proportional to 14,762.78, 20,366.21 and 9,382.34

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Solution

The fourth proportional to 14,762.78, 20,366.21 and 9,382.34 is: 12,943.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,762.78 : 20,366.21 = 9,382.34 : x
  2. Step 2: Convert to fraction form
    14,762.78/20,366.21 = 9,382.34/x
  3. Step 3: Cross multiply
    14,762.78x = 20,366.21 × 9,382.34
  4. Step 4: Simplify right side
    14,762.78x = 191,082,604.90
  5. Step 5: Solve for x
    x = 191,082,604.90/14,762.78
  6. Step 6: Final answer
    x = 12,943.54

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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.