Home / 13,822.32-19,074.64-7,853.86

Finding the Fourth Proportional to 13,822.32, 19,074.64 and 7,853.86

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Solution

The fourth proportional to 13,822.32, 19,074.64 and 7,853.86 is: 10,838.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.32 : 19,074.64 = 7,853.86 : x
  2. Step 2: Convert to fraction form
    13,822.32/19,074.64 = 7,853.86/x
  3. Step 3: Cross multiply
    13,822.32x = 19,074.64 × 7,853.86
  4. Step 4: Simplify right side
    13,822.32x = 149,809,552.11
  5. Step 5: Solve for x
    x = 149,809,552.11/13,822.32
  6. Step 6: Final answer
    x = 10,838.23

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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.