Home / 11,113.42-15,336.53-6,397.71

Finding the Fourth Proportional to 11,113.42, 15,336.53 and 6,397.71

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Solution

The fourth proportional to 11,113.42, 15,336.53 and 6,397.71 is: 8,828.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.42 : 15,336.53 = 6,397.71 : x
  2. Step 2: Convert to fraction form
    11,113.42/15,336.53 = 6,397.71/x
  3. Step 3: Cross multiply
    11,113.42x = 15,336.53 × 6,397.71
  4. Step 4: Simplify right side
    11,113.42x = 98,118,671.35
  5. Step 5: Solve for x
    x = 98,118,671.35/11,113.42
  6. Step 6: Final answer
    x = 8,828.85

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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.