Home / 14,787.42-20,401.75-9,754.15

Finding the Fourth Proportional to 14,787.42, 20,401.75 and 9,754.15

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Solution

The fourth proportional to 14,787.42, 20,401.75 and 9,754.15 is: 13,457.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,787.42 : 20,401.75 = 9,754.15 : x
  2. Step 2: Convert to fraction form
    14,787.42/20,401.75 = 9,754.15/x
  3. Step 3: Cross multiply
    14,787.42x = 20,401.75 × 9,754.15
  4. Step 4: Simplify right side
    14,787.42x = 199,001,729.76
  5. Step 5: Solve for x
    x = 199,001,729.76/14,787.42
  6. Step 6: Final answer
    x = 13,457.50

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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.