Home / 14,731.79-20,328.33-8,356.35

Finding the Fourth Proportional to 14,731.79, 20,328.33 and 8,356.35

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Solution

The fourth proportional to 14,731.79, 20,328.33 and 8,356.35 is: 11,530.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,731.79 : 20,328.33 = 8,356.35 : x
  2. Step 2: Convert to fraction form
    14,731.79/20,328.33 = 8,356.35/x
  3. Step 3: Cross multiply
    14,731.79x = 20,328.33 × 8,356.35
  4. Step 4: Simplify right side
    14,731.79x = 169,870,633.62
  5. Step 5: Solve for x
    x = 169,870,633.62/14,731.79
  6. Step 6: Final answer
    x = 11,530.89

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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.