Home / 13,921.86-19,230.57-10,378.92

Finding the Fourth Proportional to 13,921.86, 19,230.57 and 10,378.92

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Solution

The fourth proportional to 13,921.86, 19,230.57 and 10,378.92 is: 14,336.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.86 : 19,230.57 = 10,378.92 : x
  2. Step 2: Convert to fraction form
    13,921.86/19,230.57 = 10,378.92/x
  3. Step 3: Cross multiply
    13,921.86x = 19,230.57 × 10,378.92
  4. Step 4: Simplify right side
    13,921.86x = 199,592,547.58
  5. Step 5: Solve for x
    x = 199,592,547.58/13,921.86
  6. Step 6: Final answer
    x = 14,336.63

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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.