Home / 14,670.91-20,245.67-8,210.45

Finding the Fourth Proportional to 14,670.91, 20,245.67 and 8,210.45

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Solution

The fourth proportional to 14,670.91, 20,245.67 and 8,210.45 is: 11,330.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,670.91 : 20,245.67 = 8,210.45 : x
  2. Step 2: Convert to fraction form
    14,670.91/20,245.67 = 8,210.45/x
  3. Step 3: Cross multiply
    14,670.91x = 20,245.67 × 8,210.45
  4. Step 4: Simplify right side
    14,670.91x = 166,226,020.20
  5. Step 5: Solve for x
    x = 166,226,020.20/14,670.91
  6. Step 6: Final answer
    x = 11,330.32

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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.