Home / 13,000.57-19,391.62-11,803.30

Finding the Fourth Proportional to 13,000.57, 19,391.62 and 11,803.30

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Solution

The fourth proportional to 13,000.57, 19,391.62 and 11,803.30 is: 17,605.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,000.57 : 19,391.62 = 11,803.30 : x
  2. Step 2: Convert to fraction form
    13,000.57/19,391.62 = 11,803.30/x
  3. Step 3: Cross multiply
    13,000.57x = 19,391.62 × 11,803.30
  4. Step 4: Simplify right side
    13,000.57x = 228,885,108.35
  5. Step 5: Solve for x
    x = 228,885,108.35/13,000.57
  6. Step 6: Final answer
    x = 17,605.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.