Home / 9,135.79-12,610.08-5,359.77

Finding the Fourth Proportional to 9,135.79, 12,610.08 and 5,359.77

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Solution

The fourth proportional to 9,135.79, 12,610.08 and 5,359.77 is: 7,398.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.79 : 12,610.08 = 5,359.77 : x
  2. Step 2: Convert to fraction form
    9,135.79/12,610.08 = 5,359.77/x
  3. Step 3: Cross multiply
    9,135.79x = 12,610.08 × 5,359.77
  4. Step 4: Simplify right side
    9,135.79x = 67,587,128.48
  5. Step 5: Solve for x
    x = 67,587,128.48/9,135.79
  6. Step 6: Final answer
    x = 7,398.06

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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.