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Finding the Fourth Proportional to 8,954.18, 12,356.78 and 4,975.19

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Solution

The fourth proportional to 8,954.18, 12,356.78 and 4,975.19 is: 6,865.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,954.18 : 12,356.78 = 4,975.19 : x
  2. Step 2: Convert to fraction form
    8,954.18/12,356.78 = 4,975.19/x
  3. Step 3: Cross multiply
    8,954.18x = 12,356.78 × 4,975.19
  4. Step 4: Simplify right side
    8,954.18x = 61,477,328.29
  5. Step 5: Solve for x
    x = 61,477,328.29/8,954.18
  6. Step 6: Final answer
    x = 6,865.77

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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.