Home / 14,787.80-20,402.26-9,754.50

Finding the Fourth Proportional to 14,787.80, 20,402.26 and 9,754.50

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Solution

The fourth proportional to 14,787.80, 20,402.26 and 9,754.50 is: 13,457.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,787.80 : 20,402.26 = 9,754.50 : x
  2. Step 2: Convert to fraction form
    14,787.80/20,402.26 = 9,754.50/x
  3. Step 3: Cross multiply
    14,787.80x = 20,402.26 × 9,754.50
  4. Step 4: Simplify right side
    14,787.80x = 199,013,845.17
  5. Step 5: Solve for x
    x = 199,013,845.17/14,787.80
  6. Step 6: Final answer
    x = 13,457.98

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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.