Home / 13,808.08-19,054.56-7,520.48

Finding the Fourth Proportional to 13,808.08, 19,054.56 and 7,520.48

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Solution

The fourth proportional to 13,808.08, 19,054.56 and 7,520.48 is: 10,377.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,808.08 : 19,054.56 = 7,520.48 : x
  2. Step 2: Convert to fraction form
    13,808.08/19,054.56 = 7,520.48/x
  3. Step 3: Cross multiply
    13,808.08x = 19,054.56 × 7,520.48
  4. Step 4: Simplify right side
    13,808.08x = 143,299,437.39
  5. Step 5: Solve for x
    x = 143,299,437.39/13,808.08
  6. Step 6: Final answer
    x = 10,377.94

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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.