Home / 14,722.32-20,316.40-8,007.80

Finding the Fourth Proportional to 14,722.32, 20,316.40 and 8,007.80

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Solution

The fourth proportional to 14,722.32, 20,316.40 and 8,007.80 is: 11,050.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,722.32 : 20,316.40 = 8,007.80 : x
  2. Step 2: Convert to fraction form
    14,722.32/20,316.40 = 8,007.80/x
  3. Step 3: Cross multiply
    14,722.32x = 20,316.40 × 8,007.80
  4. Step 4: Simplify right side
    14,722.32x = 162,689,667.92
  5. Step 5: Solve for x
    x = 162,689,667.92/14,722.32
  6. Step 6: Final answer
    x = 11,050.55

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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.