Home / 19,766.70-27,275.40-11,807.28

Finding the Fourth Proportional to 19,766.70, 27,275.40 and 11,807.28

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Solution

The fourth proportional to 19,766.70, 27,275.40 and 11,807.28 is: 16,292.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,766.70 : 27,275.40 = 11,807.28 : x
  2. Step 2: Convert to fraction form
    19,766.70/27,275.40 = 11,807.28/x
  3. Step 3: Cross multiply
    19,766.70x = 27,275.40 × 11,807.28
  4. Step 4: Simplify right side
    19,766.70x = 322,048,284.91
  5. Step 5: Solve for x
    x = 322,048,284.91/19,766.70
  6. Step 6: Final answer
    x = 16,292.47

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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.