Home / 14,015.52-19,340.40-7,727.84

Finding the Fourth Proportional to 14,015.52, 19,340.40 and 7,727.84

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Solution

The fourth proportional to 14,015.52, 19,340.40 and 7,727.84 is: 10,663.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,015.52 : 19,340.40 = 7,727.84 : x
  2. Step 2: Convert to fraction form
    14,015.52/19,340.40 = 7,727.84/x
  3. Step 3: Cross multiply
    14,015.52x = 19,340.40 × 7,727.84
  4. Step 4: Simplify right side
    14,015.52x = 149,459,516.74
  5. Step 5: Solve for x
    x = 149,459,516.74/14,015.52
  6. Step 6: Final answer
    x = 10,663.86

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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.