Home / 13,715.46-20,580.68-5,816.75

Finding the Fourth Proportional to 13,715.46, 20,580.68 and 5,816.75

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Solution

The fourth proportional to 13,715.46, 20,580.68 and 5,816.75 is: 8,728.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,715.46 : 20,580.68 = 5,816.75 : x
  2. Step 2: Convert to fraction form
    13,715.46/20,580.68 = 5,816.75/x
  3. Step 3: Cross multiply
    13,715.46x = 20,580.68 × 5,816.75
  4. Step 4: Simplify right side
    13,715.46x = 119,712,582.03
  5. Step 5: Solve for x
    x = 119,712,582.03/13,715.46
  6. Step 6: Final answer
    x = 8,728.30

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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.