Home / 14,629.76-20,189.08-7,915.36

Finding the Fourth Proportional to 14,629.76, 20,189.08 and 7,915.36

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Solution

The fourth proportional to 14,629.76, 20,189.08 and 7,915.36 is: 10,923.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,629.76 : 20,189.08 = 7,915.36 : x
  2. Step 2: Convert to fraction form
    14,629.76/20,189.08 = 7,915.36/x
  3. Step 3: Cross multiply
    14,629.76x = 20,189.08 × 7,915.36
  4. Step 4: Simplify right side
    14,629.76x = 159,803,836.27
  5. Step 5: Solve for x
    x = 159,803,836.27/14,629.76
  6. Step 6: Final answer
    x = 10,923.20

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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.