Home / 8,416.72-11,614.55-4,639.69

Finding the Fourth Proportional to 8,416.72, 11,614.55 and 4,639.69

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Solution

The fourth proportional to 8,416.72, 11,614.55 and 4,639.69 is: 6,402.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,416.72 : 11,614.55 = 4,639.69 : x
  2. Step 2: Convert to fraction form
    8,416.72/11,614.55 = 4,639.69/x
  3. Step 3: Cross multiply
    8,416.72x = 11,614.55 × 4,639.69
  4. Step 4: Simplify right side
    8,416.72x = 53,887,886.81
  5. Step 5: Solve for x
    x = 53,887,886.81/8,416.72
  6. Step 6: Final answer
    x = 6,402.48

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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.