Home / 13,875.60-19,148.43-7,825.92

Finding the Fourth Proportional to 13,875.60, 19,148.43 and 7,825.92

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Solution

The fourth proportional to 13,875.60, 19,148.43 and 7,825.92 is: 10,799.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.60 : 19,148.43 = 7,825.92 : x
  2. Step 2: Convert to fraction form
    13,875.60/19,148.43 = 7,825.92/x
  3. Step 3: Cross multiply
    13,875.60x = 19,148.43 × 7,825.92
  4. Step 4: Simplify right side
    13,875.60x = 149,854,081.31
  5. Step 5: Solve for x
    x = 149,854,081.31/13,875.60
  6. Step 6: Final answer
    x = 10,799.83

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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.