Home / 9,915.48-13,683.96-6,555.96

Finding the Fourth Proportional to 9,915.48, 13,683.96 and 6,555.96

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Solution

The fourth proportional to 9,915.48, 13,683.96 and 6,555.96 is: 9,047.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,915.48 : 13,683.96 = 6,555.96 : x
  2. Step 2: Convert to fraction form
    9,915.48/13,683.96 = 6,555.96/x
  3. Step 3: Cross multiply
    9,915.48x = 13,683.96 × 6,555.96
  4. Step 4: Simplify right side
    9,915.48x = 89,711,494.40
  5. Step 5: Solve for x
    x = 89,711,494.40/9,915.48
  6. Step 6: Final answer
    x = 9,047.62

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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.