Home / 8,954.15-12,353.45-5,416.07

Finding the Fourth Proportional to 8,954.15, 12,353.45 and 5,416.07

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Solution

The fourth proportional to 8,954.15, 12,353.45 and 5,416.07 is: 7,472.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,954.15 : 12,353.45 = 5,416.07 : x
  2. Step 2: Convert to fraction form
    8,954.15/12,353.45 = 5,416.07/x
  3. Step 3: Cross multiply
    8,954.15x = 12,353.45 × 5,416.07
  4. Step 4: Simplify right side
    8,954.15x = 66,907,061.09
  5. Step 5: Solve for x
    x = 66,907,061.09/8,954.15
  6. Step 6: Final answer
    x = 7,472.19

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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.