Home / 13,153.86-19,691.91-8,703.18

Finding the Fourth Proportional to 13,153.86, 19,691.91 and 8,703.18

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Solution

The fourth proportional to 13,153.86, 19,691.91 and 8,703.18 is: 13,029.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153.86 : 19,691.91 = 8,703.18 : x
  2. Step 2: Convert to fraction form
    13,153.86/19,691.91 = 8,703.18/x
  3. Step 3: Cross multiply
    13,153.86x = 19,691.91 × 8,703.18
  4. Step 4: Simplify right side
    13,153.86x = 171,382,237.27
  5. Step 5: Solve for x
    x = 171,382,237.27/13,153.86
  6. Step 6: Final answer
    x = 13,029.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.