Home / 14,787.18-20,401.41-9,753.90

Finding the Fourth Proportional to 14,787.18, 20,401.41 and 9,753.90

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Solution

The fourth proportional to 14,787.18, 20,401.41 and 9,753.90 is: 13,457.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,787.18 : 20,401.41 = 9,753.90 : x
  2. Step 2: Convert to fraction form
    14,787.18/20,401.41 = 9,753.90/x
  3. Step 3: Cross multiply
    14,787.18x = 20,401.41 × 9,753.90
  4. Step 4: Simplify right side
    14,787.18x = 198,993,313.00
  5. Step 5: Solve for x
    x = 198,993,313.00/14,787.18
  6. Step 6: Final answer
    x = 13,457.15

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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.