Home / 8,434.21-11,639.15-4,657.62

Finding the Fourth Proportional to 8,434.21, 11,639.15 and 4,657.62

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Solution

The fourth proportional to 8,434.21, 11,639.15 and 4,657.62 is: 6,427.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,434.21 : 11,639.15 = 4,657.62 : x
  2. Step 2: Convert to fraction form
    8,434.21/11,639.15 = 4,657.62/x
  3. Step 3: Cross multiply
    8,434.21x = 11,639.15 × 4,657.62
  4. Step 4: Simplify right side
    8,434.21x = 54,210,737.82
  5. Step 5: Solve for x
    x = 54,210,737.82/8,434.21
  6. Step 6: Final answer
    x = 6,427.48

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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.