Home / 8,790.15-13,187.34-2,946.59

Finding the Fourth Proportional to 8,790.15, 13,187.34 and 2,946.59

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Solution

The fourth proportional to 8,790.15, 13,187.34 and 2,946.59 is: 4,420.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.15 : 13,187.34 = 2,946.59 : x
  2. Step 2: Convert to fraction form
    8,790.15/13,187.34 = 2,946.59/x
  3. Step 3: Cross multiply
    8,790.15x = 13,187.34 × 2,946.59
  4. Step 4: Simplify right side
    8,790.15x = 38,857,618.23
  5. Step 5: Solve for x
    x = 38,857,618.23/8,790.15
  6. Step 6: Final answer
    x = 4,420.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.