Home / 13,842.43-19,104.15-7,875.03

Finding the Fourth Proportional to 13,842.43, 19,104.15 and 7,875.03

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Solution

The fourth proportional to 13,842.43, 19,104.15 and 7,875.03 is: 10,868.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842.43 : 19,104.15 = 7,875.03 : x
  2. Step 2: Convert to fraction form
    13,842.43/19,104.15 = 7,875.03/x
  3. Step 3: Cross multiply
    13,842.43x = 19,104.15 × 7,875.03
  4. Step 4: Simplify right side
    13,842.43x = 150,445,754.37
  5. Step 5: Solve for x
    x = 150,445,754.37/13,842.43
  6. Step 6: Final answer
    x = 10,868.45

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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.