Home / 13,285.09-19,915.11-6,615.29

Finding the Fourth Proportional to 13,285.09, 19,915.11 and 6,615.29

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Solution

The fourth proportional to 13,285.09, 19,915.11 and 6,615.29 is: 9,916.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.09 : 19,915.11 = 6,615.29 : x
  2. Step 2: Convert to fraction form
    13,285.09/19,915.11 = 6,615.29/x
  3. Step 3: Cross multiply
    13,285.09x = 19,915.11 × 6,615.29
  4. Step 4: Simplify right side
    13,285.09x = 131,744,228.03
  5. Step 5: Solve for x
    x = 131,744,228.03/13,285.09
  6. Step 6: Final answer
    x = 9,916.70

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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.