Home / 13,070.55-18,029.21-11,475.93

Finding the Fourth Proportional to 13,070.55, 18,029.21 and 11,475.93

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Solution

The fourth proportional to 13,070.55, 18,029.21 and 11,475.93 is: 15,829.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,070.55 : 18,029.21 = 11,475.93 : x
  2. Step 2: Convert to fraction form
    13,070.55/18,029.21 = 11,475.93/x
  3. Step 3: Cross multiply
    13,070.55x = 18,029.21 × 11,475.93
  4. Step 4: Simplify right side
    13,070.55x = 206,901,951.92
  5. Step 5: Solve for x
    x = 206,901,951.92/13,070.55
  6. Step 6: Final answer
    x = 15,829.63

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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.