Home / 13,976.40-19,287.27-10,407.32

Finding the Fourth Proportional to 13,976.40, 19,287.27 and 10,407.32

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Solution

The fourth proportional to 13,976.40, 19,287.27 and 10,407.32 is: 14,361.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.40 : 19,287.27 = 10,407.32 : x
  2. Step 2: Convert to fraction form
    13,976.40/19,287.27 = 10,407.32/x
  3. Step 3: Cross multiply
    13,976.40x = 19,287.27 × 10,407.32
  4. Step 4: Simplify right side
    13,976.40x = 200,728,766.71
  5. Step 5: Solve for x
    x = 200,728,766.71/13,976.40
  6. Step 6: Final answer
    x = 14,361.98

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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.