Home / 7,923.28-10,933-4,386.40

Finding the Fourth Proportional to 7,923.28, 10,933 and 4,386.40

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Solution

The fourth proportional to 7,923.28, 10,933 and 4,386.40 is: 6,052.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,923.28 : 10,933 = 4,386.40 : x
  2. Step 2: Convert to fraction form
    7,923.28/10,933 = 4,386.40/x
  3. Step 3: Cross multiply
    7,923.28x = 10,933 × 4,386.40
  4. Step 4: Simplify right side
    7,923.28x = 47,956,511.20
  5. Step 5: Solve for x
    x = 47,956,511.20/7,923.28
  6. Step 6: Final answer
    x = 6,052.61

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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.