Home / 12,048.64-16,630.40-7,082.24

Finding the Fourth Proportional to 12,048.64, 16,630.40 and 7,082.24

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Solution

The fourth proportional to 12,048.64, 16,630.40 and 7,082.24 is: 9,775.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,048.64 : 16,630.40 = 7,082.24 : x
  2. Step 2: Convert to fraction form
    12,048.64/16,630.40 = 7,082.24/x
  3. Step 3: Cross multiply
    12,048.64x = 16,630.40 × 7,082.24
  4. Step 4: Simplify right side
    12,048.64x = 117,780,484.10
  5. Step 5: Solve for x
    x = 117,780,484.10/12,048.64
  6. Step 6: Final answer
    x = 9,775.42

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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.