Home / 11,118.18-15,346.95-6,404.34

Finding the Fourth Proportional to 11,118.18, 15,346.95 and 6,404.34

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Solution

The fourth proportional to 11,118.18, 15,346.95 and 6,404.34 is: 8,840.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.18 : 15,346.95 = 6,404.34 : x
  2. Step 2: Convert to fraction form
    11,118.18/15,346.95 = 6,404.34/x
  3. Step 3: Cross multiply
    11,118.18x = 15,346.95 × 6,404.34
  4. Step 4: Simplify right side
    11,118.18x = 98,287,085.76
  5. Step 5: Solve for x
    x = 98,287,085.76/11,118.18
  6. Step 6: Final answer
    x = 8,840.21

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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.