Home / 10,787.81-14,887.13-6,072.08

Finding the Fourth Proportional to 10,787.81, 14,887.13 and 6,072.08

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Solution

The fourth proportional to 10,787.81, 14,887.13 and 6,072.08 is: 8,379.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,787.81 : 14,887.13 = 6,072.08 : x
  2. Step 2: Convert to fraction form
    10,787.81/14,887.13 = 6,072.08/x
  3. Step 3: Cross multiply
    10,787.81x = 14,887.13 × 6,072.08
  4. Step 4: Simplify right side
    10,787.81x = 90,395,739.53
  5. Step 5: Solve for x
    x = 90,395,739.53/10,787.81
  6. Step 6: Final answer
    x = 8,379.44

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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.