Home / 8,145.15-11,240.13-4,788.10

Finding the Fourth Proportional to 8,145.15, 11,240.13 and 4,788.10

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Solution

The fourth proportional to 8,145.15, 11,240.13 and 4,788.10 is: 6,607.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.15 : 11,240.13 = 4,788.10 : x
  2. Step 2: Convert to fraction form
    8,145.15/11,240.13 = 4,788.10/x
  3. Step 3: Cross multiply
    8,145.15x = 11,240.13 × 4,788.10
  4. Step 4: Simplify right side
    8,145.15x = 53,818,866.45
  5. Step 5: Solve for x
    x = 53,818,866.45/8,145.15
  6. Step 6: Final answer
    x = 6,607.47

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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.