Home / 13,888.25-19,165.80-7,600.64

Finding the Fourth Proportional to 13,888.25, 19,165.80 and 7,600.64

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Solution

The fourth proportional to 13,888.25, 19,165.80 and 7,600.64 is: 10,488.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.25 : 19,165.80 = 7,600.64 : x
  2. Step 2: Convert to fraction form
    13,888.25/19,165.80 = 7,600.64/x
  3. Step 3: Cross multiply
    13,888.25x = 19,165.80 × 7,600.64
  4. Step 4: Simplify right side
    13,888.25x = 145,672,346.11
  5. Step 5: Solve for x
    x = 145,672,346.11/13,888.25
  6. Step 6: Final answer
    x = 10,488.89

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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.