Home / 13,913.16-20,870.88-5,592.09

Finding the Fourth Proportional to 13,913.16, 20,870.88 and 5,592.09

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Solution

The fourth proportional to 13,913.16, 20,870.88 and 5,592.09 is: 8,388.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.16 : 20,870.88 = 5,592.09 : x
  2. Step 2: Convert to fraction form
    13,913.16/20,870.88 = 5,592.09/x
  3. Step 3: Cross multiply
    13,913.16x = 20,870.88 × 5,592.09
  4. Step 4: Simplify right side
    13,913.16x = 116,711,839.34
  5. Step 5: Solve for x
    x = 116,711,839.34/13,913.16
  6. Step 6: Final answer
    x = 8,388.59

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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.