Home / 14,630.23-20,189.58-7,915.71

Finding the Fourth Proportional to 14,630.23, 20,189.58 and 7,915.71

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Solution

The fourth proportional to 14,630.23, 20,189.58 and 7,915.71 is: 10,923.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,630.23 : 20,189.58 = 7,915.71 : x
  2. Step 2: Convert to fraction form
    14,630.23/20,189.58 = 7,915.71/x
  3. Step 3: Cross multiply
    14,630.23x = 20,189.58 × 7,915.71
  4. Step 4: Simplify right side
    14,630.23x = 159,814,868.47
  5. Step 5: Solve for x
    x = 159,814,868.47/14,630.23
  6. Step 6: Final answer
    x = 10,923.60

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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.