Home / 8,535.05-12,800.07-2,987.36

Finding the Fourth Proportional to 8,535.05, 12,800.07 and 2,987.36

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Solution

The fourth proportional to 8,535.05, 12,800.07 and 2,987.36 is: 4,480.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,535.05 : 12,800.07 = 2,987.36 : x
  2. Step 2: Convert to fraction form
    8,535.05/12,800.07 = 2,987.36/x
  3. Step 3: Cross multiply
    8,535.05x = 12,800.07 × 2,987.36
  4. Step 4: Simplify right side
    8,535.05x = 38,238,417.12
  5. Step 5: Solve for x
    x = 38,238,417.12/8,535.05
  6. Step 6: Final answer
    x = 4,480.16

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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.