Home / 10,869.86-14,999.66-6,153.86

Finding the Fourth Proportional to 10,869.86, 14,999.66 and 6,153.86

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Solution

The fourth proportional to 10,869.86, 14,999.66 and 6,153.86 is: 8,491.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,869.86 : 14,999.66 = 6,153.86 : x
  2. Step 2: Convert to fraction form
    10,869.86/14,999.66 = 6,153.86/x
  3. Step 3: Cross multiply
    10,869.86x = 14,999.66 × 6,153.86
  4. Step 4: Simplify right side
    10,869.86x = 92,305,807.69
  5. Step 5: Solve for x
    x = 92,305,807.69/10,869.86
  6. Step 6: Final answer
    x = 8,491.90

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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.