Home / 12,559.36-18,837.12-7,564.48

Finding the Fourth Proportional to 12,559.36, 18,837.12 and 7,564.48

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Solution

The fourth proportional to 12,559.36, 18,837.12 and 7,564.48 is: 11,345.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,559.36 : 18,837.12 = 7,564.48 : x
  2. Step 2: Convert to fraction form
    12,559.36/18,837.12 = 7,564.48/x
  3. Step 3: Cross multiply
    12,559.36x = 18,837.12 × 7,564.48
  4. Step 4: Simplify right side
    12,559.36x = 142,493,017.50
  5. Step 5: Solve for x
    x = 142,493,017.50/12,559.36
  6. Step 6: Final answer
    x = 11,345.56

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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.