Home / 14,630.91-20,190.60-7,916.55

Finding the Fourth Proportional to 14,630.91, 20,190.60 and 7,916.55

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Solution

The fourth proportional to 14,630.91, 20,190.60 and 7,916.55 is: 10,924.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,630.91 : 20,190.60 = 7,916.55 : x
  2. Step 2: Convert to fraction form
    14,630.91/20,190.60 = 7,916.55/x
  3. Step 3: Cross multiply
    14,630.91x = 20,190.60 × 7,916.55
  4. Step 4: Simplify right side
    14,630.91x = 159,839,894.43
  5. Step 5: Solve for x
    x = 159,839,894.43/14,630.91
  6. Step 6: Final answer
    x = 10,924.81

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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.