Home / 8,927.55-12,321.38-5,698.76

Finding the Fourth Proportional to 8,927.55, 12,321.38 and 5,698.76

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Solution

The fourth proportional to 8,927.55, 12,321.38 and 5,698.76 is: 7,865.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,927.55 : 12,321.38 = 5,698.76 : x
  2. Step 2: Convert to fraction form
    8,927.55/12,321.38 = 5,698.76/x
  3. Step 3: Cross multiply
    8,927.55x = 12,321.38 × 5,698.76
  4. Step 4: Simplify right side
    8,927.55x = 70,216,568.07
  5. Step 5: Solve for x
    x = 70,216,568.07/8,927.55
  6. Step 6: Final answer
    x = 7,865.16

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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.