Home / 8,856.09-12,225.21-5,318.64

Finding the Fourth Proportional to 8,856.09, 12,225.21 and 5,318.64

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Solution

The fourth proportional to 8,856.09, 12,225.21 and 5,318.64 is: 7,342.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.09 : 12,225.21 = 5,318.64 : x
  2. Step 2: Convert to fraction form
    8,856.09/12,225.21 = 5,318.64/x
  3. Step 3: Cross multiply
    8,856.09x = 12,225.21 × 5,318.64
  4. Step 4: Simplify right side
    8,856.09x = 65,021,490.91
  5. Step 5: Solve for x
    x = 65,021,490.91/8,856.09
  6. Step 6: Final answer
    x = 7,342.01

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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.