Home / 11,499.64-15,870.13-6,395.69

Finding the Fourth Proportional to 11,499.64, 15,870.13 and 6,395.69

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Solution

The fourth proportional to 11,499.64, 15,870.13 and 6,395.69 is: 8,826.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,499.64 : 15,870.13 = 6,395.69 : x
  2. Step 2: Convert to fraction form
    11,499.64/15,870.13 = 6,395.69/x
  3. Step 3: Cross multiply
    11,499.64x = 15,870.13 × 6,395.69
  4. Step 4: Simplify right side
    11,499.64x = 101,500,455.43
  5. Step 5: Solve for x
    x = 101,500,455.43/11,499.64
  6. Step 6: Final answer
    x = 8,826.40

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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.