Home / 11,935.98-16,470.40-6,899.80

Finding the Fourth Proportional to 11,935.98, 16,470.40 and 6,899.80

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Solution

The fourth proportional to 11,935.98, 16,470.40 and 6,899.80 is: 9,521.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,935.98 : 16,470.40 = 6,899.80 : x
  2. Step 2: Convert to fraction form
    11,935.98/16,470.40 = 6,899.80/x
  3. Step 3: Cross multiply
    11,935.98x = 16,470.40 × 6,899.80
  4. Step 4: Simplify right side
    11,935.98x = 113,642,465.92
  5. Step 5: Solve for x
    x = 113,642,465.92/11,935.98
  6. Step 6: Final answer
    x = 9,521.00

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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.