Home / 18,630.02-25,710.09-10,673.78

Finding the Fourth Proportional to 18,630.02, 25,710.09 and 10,673.78

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Solution

The fourth proportional to 18,630.02, 25,710.09 and 10,673.78 is: 14,730.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,630.02 : 25,710.09 = 10,673.78 : x
  2. Step 2: Convert to fraction form
    18,630.02/25,710.09 = 10,673.78/x
  3. Step 3: Cross multiply
    18,630.02x = 25,710.09 × 10,673.78
  4. Step 4: Simplify right side
    18,630.02x = 274,423,868.69
  5. Step 5: Solve for x
    x = 274,423,868.69/18,630.02
  6. Step 6: Final answer
    x = 14,730.20

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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.