Home / 8,756.36-12,085.74-5,221.52

Finding the Fourth Proportional to 8,756.36, 12,085.74 and 5,221.52

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Solution

The fourth proportional to 8,756.36, 12,085.74 and 5,221.52 is: 7,206.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756.36 : 12,085.74 = 5,221.52 : x
  2. Step 2: Convert to fraction form
    8,756.36/12,085.74 = 5,221.52/x
  3. Step 3: Cross multiply
    8,756.36x = 12,085.74 × 5,221.52
  4. Step 4: Simplify right side
    8,756.36x = 63,105,933.12
  5. Step 5: Solve for x
    x = 63,105,933.12/8,756.36
  6. Step 6: Final answer
    x = 7,206.87

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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.