Home / 19,772.69-27,285.27-11,275.03

Finding the Fourth Proportional to 19,772.69, 27,285.27 and 11,275.03

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Solution

The fourth proportional to 19,772.69, 27,285.27 and 11,275.03 is: 15,558.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.69 : 27,285.27 = 11,275.03 : x
  2. Step 2: Convert to fraction form
    19,772.69/27,285.27 = 11,275.03/x
  3. Step 3: Cross multiply
    19,772.69x = 27,285.27 × 11,275.03
  4. Step 4: Simplify right side
    19,772.69x = 307,642,237.81
  5. Step 5: Solve for x
    x = 307,642,237.81/19,772.69
  6. Step 6: Final answer
    x = 15,558.95

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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.