Home / 14,722.36-20,316.84-8,434.76

Finding the Fourth Proportional to 14,722.36, 20,316.84 and 8,434.76

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Solution

The fourth proportional to 14,722.36, 20,316.84 and 8,434.76 is: 11,639.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,722.36 : 20,316.84 = 8,434.76 : x
  2. Step 2: Convert to fraction form
    14,722.36/20,316.84 = 8,434.76/x
  3. Step 3: Cross multiply
    14,722.36x = 20,316.84 × 8,434.76
  4. Step 4: Simplify right side
    14,722.36x = 171,367,669.36
  5. Step 5: Solve for x
    x = 171,367,669.36/14,722.36
  6. Step 6: Final answer
    x = 11,639.96

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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.