Home / 10,135.45-13,987.16-6,358.77

Finding the Fourth Proportional to 10,135.45, 13,987.16 and 6,358.77

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Solution

The fourth proportional to 10,135.45, 13,987.16 and 6,358.77 is: 8,775.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,135.45 : 13,987.16 = 6,358.77 : x
  2. Step 2: Convert to fraction form
    10,135.45/13,987.16 = 6,358.77/x
  3. Step 3: Cross multiply
    10,135.45x = 13,987.16 × 6,358.77
  4. Step 4: Simplify right side
    10,135.45x = 88,941,101.60
  5. Step 5: Solve for x
    x = 88,941,101.60/10,135.45
  6. Step 6: Final answer
    x = 8,775.25

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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.