Home / 8,953.40-12,355.67-5,416.61

Finding the Fourth Proportional to 8,953.40, 12,355.67 and 5,416.61

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Solution

The fourth proportional to 8,953.40, 12,355.67 and 5,416.61 is: 7,474.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,953.40 : 12,355.67 = 5,416.61 : x
  2. Step 2: Convert to fraction form
    8,953.40/12,355.67 = 5,416.61/x
  3. Step 3: Cross multiply
    8,953.40x = 12,355.67 × 5,416.61
  4. Step 4: Simplify right side
    8,953.40x = 66,925,797.44
  5. Step 5: Solve for x
    x = 66,925,797.44/8,953.40
  6. Step 6: Final answer
    x = 7,474.90

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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.