Home / 19,123.16-26,387.61-11,159.60

Finding the Fourth Proportional to 19,123.16, 26,387.61 and 11,159.60

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Solution

The fourth proportional to 19,123.16, 26,387.61 and 11,159.60 is: 15,398.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,123.16 : 26,387.61 = 11,159.60 : x
  2. Step 2: Convert to fraction form
    19,123.16/26,387.61 = 11,159.60/x
  3. Step 3: Cross multiply
    19,123.16x = 26,387.61 × 11,159.60
  4. Step 4: Simplify right side
    19,123.16x = 294,475,172.56
  5. Step 5: Solve for x
    x = 294,475,172.56/19,123.16
  6. Step 6: Final answer
    x = 15,398.88

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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.