Home / 13,148.66-18,151.53-8,440.94

Finding the Fourth Proportional to 13,148.66, 18,151.53 and 8,440.94

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Solution

The fourth proportional to 13,148.66, 18,151.53 and 8,440.94 is: 11,652.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148.66 : 18,151.53 = 8,440.94 : x
  2. Step 2: Convert to fraction form
    13,148.66/18,151.53 = 8,440.94/x
  3. Step 3: Cross multiply
    13,148.66x = 18,151.53 × 8,440.94
  4. Step 4: Simplify right side
    13,148.66x = 153,215,975.64
  5. Step 5: Solve for x
    x = 153,215,975.64/13,148.66
  6. Step 6: Final answer
    x = 11,652.59

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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.