Home / 15,586.28-21,506.66-8,961

Finding the Fourth Proportional to 15,586.28, 21,506.66 and 8,961

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Solution

The fourth proportional to 15,586.28, 21,506.66 and 8,961 is: 12,364.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,586.28 : 21,506.66 = 8,961 : x
  2. Step 2: Convert to fraction form
    15,586.28/21,506.66 = 8,961/x
  3. Step 3: Cross multiply
    15,586.28x = 21,506.66 × 8,961
  4. Step 4: Simplify right side
    15,586.28x = 192,721,180.26
  5. Step 5: Solve for x
    x = 192,721,180.26/15,586.28
  6. Step 6: Final answer
    x = 12,364.80

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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.