Home / 19,112.68-26,395.50-13,159.72

Finding the Fourth Proportional to 19,112.68, 26,395.50 and 13,159.72

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Solution

The fourth proportional to 19,112.68, 26,395.50 and 13,159.72 is: 18,174.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,112.68 : 26,395.50 = 13,159.72 : x
  2. Step 2: Convert to fraction form
    19,112.68/26,395.50 = 13,159.72/x
  3. Step 3: Cross multiply
    19,112.68x = 26,395.50 × 13,159.72
  4. Step 4: Simplify right side
    19,112.68x = 347,357,389.26
  5. Step 5: Solve for x
    x = 347,357,389.26/19,112.68
  6. Step 6: Final answer
    x = 18,174.19

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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.