Home / 12,646.23-17,451.69-6,980.98

Finding the Fourth Proportional to 12,646.23, 17,451.69 and 6,980.98

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Solution

The fourth proportional to 12,646.23, 17,451.69 and 6,980.98 is: 9,633.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646.23 : 17,451.69 = 6,980.98 : x
  2. Step 2: Convert to fraction form
    12,646.23/17,451.69 = 6,980.98/x
  3. Step 3: Cross multiply
    12,646.23x = 17,451.69 × 6,980.98
  4. Step 4: Simplify right side
    12,646.23x = 121,829,898.86
  5. Step 5: Solve for x
    x = 121,829,898.86/12,646.23
  6. Step 6: Final answer
    x = 9,633.69

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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.