Home / 10,299.15-14,200.29-8,702.91

Finding the Fourth Proportional to 10,299.15, 14,200.29 and 8,702.91

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Solution

The fourth proportional to 10,299.15, 14,200.29 and 8,702.91 is: 11,999.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,299.15 : 14,200.29 = 8,702.91 : x
  2. Step 2: Convert to fraction form
    10,299.15/14,200.29 = 8,702.91/x
  3. Step 3: Cross multiply
    10,299.15x = 14,200.29 × 8,702.91
  4. Step 4: Simplify right side
    10,299.15x = 123,583,845.84
  5. Step 5: Solve for x
    x = 123,583,845.84/10,299.15
  6. Step 6: Final answer
    x = 11,999.42

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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.