Home / 15,164.66-20,916.09-9,784.36

Finding the Fourth Proportional to 15,164.66, 20,916.09 and 9,784.36

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Solution

The fourth proportional to 15,164.66, 20,916.09 and 9,784.36 is: 13,495.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,164.66 : 20,916.09 = 9,784.36 : x
  2. Step 2: Convert to fraction form
    15,164.66/20,916.09 = 9,784.36/x
  3. Step 3: Cross multiply
    15,164.66x = 20,916.09 × 9,784.36
  4. Step 4: Simplify right side
    15,164.66x = 204,650,554.35
  5. Step 5: Solve for x
    x = 204,650,554.35/15,164.66
  6. Step 6: Final answer
    x = 13,495.23

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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.