Home / 14,135.77-19,510.86-8,171.15

Finding the Fourth Proportional to 14,135.77, 19,510.86 and 8,171.15

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Solution

The fourth proportional to 14,135.77, 19,510.86 and 8,171.15 is: 11,278.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.77 : 19,510.86 = 8,171.15 : x
  2. Step 2: Convert to fraction form
    14,135.77/19,510.86 = 8,171.15/x
  3. Step 3: Cross multiply
    14,135.77x = 19,510.86 × 8,171.15
  4. Step 4: Simplify right side
    14,135.77x = 159,426,243.11
  5. Step 5: Solve for x
    x = 159,426,243.11/14,135.77
  6. Step 6: Final answer
    x = 11,278.22

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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.