Home / 19,488.60-26,889.57-11,532.78

Finding the Fourth Proportional to 19,488.60, 26,889.57 and 11,532.78

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Solution

The fourth proportional to 19,488.60, 26,889.57 and 11,532.78 is: 15,912.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,488.60 : 26,889.57 = 11,532.78 : x
  2. Step 2: Convert to fraction form
    19,488.60/26,889.57 = 11,532.78/x
  3. Step 3: Cross multiply
    19,488.60x = 26,889.57 × 11,532.78
  4. Step 4: Simplify right side
    19,488.60x = 310,111,495.10
  5. Step 5: Solve for x
    x = 310,111,495.10/19,488.60
  6. Step 6: Final answer
    x = 15,912.46

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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.