Home / 11,319.55-15,622.37-6,605.35

Finding the Fourth Proportional to 11,319.55, 15,622.37 and 6,605.35

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Solution

The fourth proportional to 11,319.55, 15,622.37 and 6,605.35 is: 9,116.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.55 : 15,622.37 = 6,605.35 : x
  2. Step 2: Convert to fraction form
    11,319.55/15,622.37 = 6,605.35/x
  3. Step 3: Cross multiply
    11,319.55x = 15,622.37 × 6,605.35
  4. Step 4: Simplify right side
    11,319.55x = 103,191,174.37
  5. Step 5: Solve for x
    x = 103,191,174.37/11,319.55
  6. Step 6: Final answer
    x = 9,116.19

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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.