Home / 14,071.68-19,418.28-7,783.92

Finding the Fourth Proportional to 14,071.68, 19,418.28 and 7,783.92

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Solution

The fourth proportional to 14,071.68, 19,418.28 and 7,783.92 is: 10,741.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,071.68 : 19,418.28 = 7,783.92 : x
  2. Step 2: Convert to fraction form
    14,071.68/19,418.28 = 7,783.92/x
  3. Step 3: Cross multiply
    14,071.68x = 19,418.28 × 7,783.92
  4. Step 4: Simplify right side
    14,071.68x = 151,150,338.06
  5. Step 5: Solve for x
    x = 151,150,338.06/14,071.68
  6. Step 6: Final answer
    x = 10,741.46

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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.