Home / 15,312.78-22,969.44-4,783.10

Finding the Fourth Proportional to 15,312.78, 22,969.44 and 4,783.10

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Solution

The fourth proportional to 15,312.78, 22,969.44 and 4,783.10 is: 7,174.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312.78 : 22,969.44 = 4,783.10 : x
  2. Step 2: Convert to fraction form
    15,312.78/22,969.44 = 4,783.10/x
  3. Step 3: Cross multiply
    15,312.78x = 22,969.44 × 4,783.10
  4. Step 4: Simplify right side
    15,312.78x = 109,865,013.62
  5. Step 5: Solve for x
    x = 109,865,013.62/15,312.78
  6. Step 6: Final answer
    x = 7,174.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.