Home / 11,188.81-15,440.80-6,153.31

Finding the Fourth Proportional to 11,188.81, 15,440.80 and 6,153.31

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Solution

The fourth proportional to 11,188.81, 15,440.80 and 6,153.31 is: 8,491.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.81 : 15,440.80 = 6,153.31 : x
  2. Step 2: Convert to fraction form
    11,188.81/15,440.80 = 6,153.31/x
  3. Step 3: Cross multiply
    11,188.81x = 15,440.80 × 6,153.31
  4. Step 4: Simplify right side
    11,188.81x = 95,011,951.84
  5. Step 5: Solve for x
    x = 95,011,951.84/11,188.81
  6. Step 6: Final answer
    x = 8,491.70

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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.