Home / 11,188.79-15,440.93-6,153.40

Finding the Fourth Proportional to 11,188.79, 15,440.93 and 6,153.40

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Solution

The fourth proportional to 11,188.79, 15,440.93 and 6,153.40 is: 8,491.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.79 : 15,440.93 = 6,153.40 : x
  2. Step 2: Convert to fraction form
    11,188.79/15,440.93 = 6,153.40/x
  3. Step 3: Cross multiply
    11,188.79x = 15,440.93 × 6,153.40
  4. Step 4: Simplify right side
    11,188.79x = 95,014,230.27
  5. Step 5: Solve for x
    x = 95,014,230.27/11,188.79
  6. Step 6: Final answer
    x = 8,491.91

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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.