Home / 14,100.86-19,432.39-10,115.07

Finding the Fourth Proportional to 14,100.86, 19,432.39 and 10,115.07

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Solution

The fourth proportional to 14,100.86, 19,432.39 and 10,115.07 is: 13,939.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,100.86 : 19,432.39 = 10,115.07 : x
  2. Step 2: Convert to fraction form
    14,100.86/19,432.39 = 10,115.07/x
  3. Step 3: Cross multiply
    14,100.86x = 19,432.39 × 10,115.07
  4. Step 4: Simplify right side
    14,100.86x = 196,559,985.12
  5. Step 5: Solve for x
    x = 196,559,985.12/14,100.86
  6. Step 6: Final answer
    x = 13,939.57

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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.