Home / 13,245.66-19,876.68-7,701.60

Finding the Fourth Proportional to 13,245.66, 19,876.68 and 7,701.60

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Solution

The fourth proportional to 13,245.66, 19,876.68 and 7,701.60 is: 11,557.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.66 : 19,876.68 = 7,701.60 : x
  2. Step 2: Convert to fraction form
    13,245.66/19,876.68 = 7,701.60/x
  3. Step 3: Cross multiply
    13,245.66x = 19,876.68 × 7,701.60
  4. Step 4: Simplify right side
    13,245.66x = 153,082,238.69
  5. Step 5: Solve for x
    x = 153,082,238.69/13,245.66
  6. Step 6: Final answer
    x = 11,557.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.