Home / 14,630.47-20,189.90-7,915.94

Finding the Fourth Proportional to 14,630.47, 20,189.90 and 7,915.94

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Solution

The fourth proportional to 14,630.47, 20,189.90 and 7,915.94 is: 10,923.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,630.47 : 20,189.90 = 7,915.94 : x
  2. Step 2: Convert to fraction form
    14,630.47/20,189.90 = 7,915.94/x
  3. Step 3: Cross multiply
    14,630.47x = 20,189.90 × 7,915.94
  4. Step 4: Simplify right side
    14,630.47x = 159,822,100.60
  5. Step 5: Solve for x
    x = 159,822,100.60/14,630.47
  6. Step 6: Final answer
    x = 10,923.92

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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.