Home / 13,915.64-20,874.40-5,595.65

Finding the Fourth Proportional to 13,915.64, 20,874.40 and 5,595.65

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Solution

The fourth proportional to 13,915.64, 20,874.40 and 5,595.65 is: 8,393.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.64 : 20,874.40 = 5,595.65 : x
  2. Step 2: Convert to fraction form
    13,915.64/20,874.40 = 5,595.65/x
  3. Step 3: Cross multiply
    13,915.64x = 20,874.40 × 5,595.65
  4. Step 4: Simplify right side
    13,915.64x = 116,805,836.36
  5. Step 5: Solve for x
    x = 116,805,836.36/13,915.64
  6. Step 6: Final answer
    x = 8,393.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.