Home / 15,156.86-20,936.07-13,053.69

Finding the Fourth Proportional to 15,156.86, 20,936.07 and 13,053.69

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Solution

The fourth proportional to 15,156.86, 20,936.07 and 13,053.69 is: 18,030.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,156.86 : 20,936.07 = 13,053.69 : x
  2. Step 2: Convert to fraction form
    15,156.86/20,936.07 = 13,053.69/x
  3. Step 3: Cross multiply
    15,156.86x = 20,936.07 × 13,053.69
  4. Step 4: Simplify right side
    15,156.86x = 273,292,967.60
  5. Step 5: Solve for x
    x = 273,292,967.60/15,156.86
  6. Step 6: Final answer
    x = 18,030.98

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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.