Home / 10,787.89-14,887.29-6,072.28

Finding the Fourth Proportional to 10,787.89, 14,887.29 and 6,072.28

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Solution

The fourth proportional to 10,787.89, 14,887.29 and 6,072.28 is: 8,379.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,787.89 : 14,887.29 = 6,072.28 : x
  2. Step 2: Convert to fraction form
    10,787.89/14,887.29 = 6,072.28/x
  3. Step 3: Cross multiply
    10,787.89x = 14,887.29 × 6,072.28
  4. Step 4: Simplify right side
    10,787.89x = 90,399,718.88
  5. Step 5: Solve for x
    x = 90,399,718.88/10,787.89
  6. Step 6: Final answer
    x = 8,379.74

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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.