Home / 8,790.58-12,132.12-5,015.08

Finding the Fourth Proportional to 8,790.58, 12,132.12 and 5,015.08

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Solution

The fourth proportional to 8,790.58, 12,132.12 and 5,015.08 is: 6,921.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.58 : 12,132.12 = 5,015.08 : x
  2. Step 2: Convert to fraction form
    8,790.58/12,132.12 = 5,015.08/x
  3. Step 3: Cross multiply
    8,790.58x = 12,132.12 × 5,015.08
  4. Step 4: Simplify right side
    8,790.58x = 60,843,552.37
  5. Step 5: Solve for x
    x = 60,843,552.37/8,790.58
  6. Step 6: Final answer
    x = 6,921.45

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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.