Home / 13,156.66-19,744.71-9,876.16

Finding the Fourth Proportional to 13,156.66, 19,744.71 and 9,876.16

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Solution

The fourth proportional to 13,156.66, 19,744.71 and 9,876.16 is: 14,821.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156.66 : 19,744.71 = 9,876.16 : x
  2. Step 2: Convert to fraction form
    13,156.66/19,744.71 = 9,876.16/x
  3. Step 3: Cross multiply
    13,156.66x = 19,744.71 × 9,876.16
  4. Step 4: Simplify right side
    13,156.66x = 195,001,915.11
  5. Step 5: Solve for x
    x = 195,001,915.11/13,156.66
  6. Step 6: Final answer
    x = 14,821.54

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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.