Home / 11,915.13-16,444.29-6,880.57

Finding the Fourth Proportional to 11,915.13, 16,444.29 and 6,880.57

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Solution

The fourth proportional to 11,915.13, 16,444.29 and 6,880.57 is: 9,496.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,915.13 : 16,444.29 = 6,880.57 : x
  2. Step 2: Convert to fraction form
    11,915.13/16,444.29 = 6,880.57/x
  3. Step 3: Cross multiply
    11,915.13x = 16,444.29 × 6,880.57
  4. Step 4: Simplify right side
    11,915.13x = 113,146,088.45
  5. Step 5: Solve for x
    x = 113,146,088.45/11,915.13
  6. Step 6: Final answer
    x = 9,496.00

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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.