Home / 15,060.07-20,783.43-9,090.57

Finding the Fourth Proportional to 15,060.07, 20,783.43 and 9,090.57

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Solution

The fourth proportional to 15,060.07, 20,783.43 and 9,090.57 is: 12,545.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,060.07 : 20,783.43 = 9,090.57 : x
  2. Step 2: Convert to fraction form
    15,060.07/20,783.43 = 9,090.57/x
  3. Step 3: Cross multiply
    15,060.07x = 20,783.43 × 9,090.57
  4. Step 4: Simplify right side
    15,060.07x = 188,933,150.57
  5. Step 5: Solve for x
    x = 188,933,150.57/15,060.07
  6. Step 6: Final answer
    x = 12,545.31

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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.