Home / 19,135.86-26,407.65-12,424.02

Finding the Fourth Proportional to 19,135.86, 26,407.65 and 12,424.02

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Solution

The fourth proportional to 19,135.86, 26,407.65 and 12,424.02 is: 17,145.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,135.86 : 26,407.65 = 12,424.02 : x
  2. Step 2: Convert to fraction form
    19,135.86/26,407.65 = 12,424.02/x
  3. Step 3: Cross multiply
    19,135.86x = 26,407.65 × 12,424.02
  4. Step 4: Simplify right side
    19,135.86x = 328,089,171.75
  5. Step 5: Solve for x
    x = 328,089,171.75/19,135.86
  6. Step 6: Final answer
    x = 17,145.25

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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.