Home / 9,915.56-13,685.40-6,558.56

Finding the Fourth Proportional to 9,915.56, 13,685.40 and 6,558.56

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Solution

The fourth proportional to 9,915.56, 13,685.40 and 6,558.56 is: 9,052.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,915.56 : 13,685.40 = 6,558.56 : x
  2. Step 2: Convert to fraction form
    9,915.56/13,685.40 = 6,558.56/x
  3. Step 3: Cross multiply
    9,915.56x = 13,685.40 × 6,558.56
  4. Step 4: Simplify right side
    9,915.56x = 89,756,517.02
  5. Step 5: Solve for x
    x = 89,756,517.02/9,915.56
  6. Step 6: Final answer
    x = 9,052.09

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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.