Home / 13,996.40-19,314.15-7,708.77

Finding the Fourth Proportional to 13,996.40, 19,314.15 and 7,708.77

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Solution

The fourth proportional to 13,996.40, 19,314.15 and 7,708.77 is: 10,637.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,996.40 : 19,314.15 = 7,708.77 : x
  2. Step 2: Convert to fraction form
    13,996.40/19,314.15 = 7,708.77/x
  3. Step 3: Cross multiply
    13,996.40x = 19,314.15 × 7,708.77
  4. Step 4: Simplify right side
    13,996.40x = 148,888,340.10
  5. Step 5: Solve for x
    x = 148,888,340.10/13,996.40
  6. Step 6: Final answer
    x = 10,637.62

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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.