Home / 13,908.84-20,856.58-5,586.64

Finding the Fourth Proportional to 13,908.84, 20,856.58 and 5,586.64

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Solution

The fourth proportional to 13,908.84, 20,856.58 and 5,586.64 is: 8,377.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908.84 : 20,856.58 = 5,586.64 : x
  2. Step 2: Convert to fraction form
    13,908.84/20,856.58 = 5,586.64/x
  3. Step 3: Cross multiply
    13,908.84x = 20,856.58 × 5,586.64
  4. Step 4: Simplify right side
    13,908.84x = 116,518,204.09
  5. Step 5: Solve for x
    x = 116,518,204.09/13,908.84
  6. Step 6: Final answer
    x = 8,377.28

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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.