Home / 8,622.90-11,899.74-4,742.47

Finding the Fourth Proportional to 8,622.90, 11,899.74 and 4,742.47

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Solution

The fourth proportional to 8,622.90, 11,899.74 and 4,742.47 is: 6,544.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.90 : 11,899.74 = 4,742.47 : x
  2. Step 2: Convert to fraction form
    8,622.90/11,899.74 = 4,742.47/x
  3. Step 3: Cross multiply
    8,622.90x = 11,899.74 × 4,742.47
  4. Step 4: Simplify right side
    8,622.90x = 56,434,204.76
  5. Step 5: Solve for x
    x = 56,434,204.76/8,622.90
  6. Step 6: Final answer
    x = 6,544.69

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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.