Home / 11,117.91-15,346.58-6,404.07

Finding the Fourth Proportional to 11,117.91, 15,346.58 and 6,404.07

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Solution

The fourth proportional to 11,117.91, 15,346.58 and 6,404.07 is: 8,839.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.91 : 15,346.58 = 6,404.07 : x
  2. Step 2: Convert to fraction form
    11,117.91/15,346.58 = 6,404.07/x
  3. Step 3: Cross multiply
    11,117.91x = 15,346.58 × 6,404.07
  4. Step 4: Simplify right side
    11,117.91x = 98,280,572.58
  5. Step 5: Solve for x
    x = 98,280,572.58/11,117.91
  6. Step 6: Final answer
    x = 8,839.84

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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.