Home / 13,965.55-20,931.28-6,560.12

Finding the Fourth Proportional to 13,965.55, 20,931.28 and 6,560.12

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Solution

The fourth proportional to 13,965.55, 20,931.28 and 6,560.12 is: 9,832.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.55 : 20,931.28 = 6,560.12 : x
  2. Step 2: Convert to fraction form
    13,965.55/20,931.28 = 6,560.12/x
  3. Step 3: Cross multiply
    13,965.55x = 20,931.28 × 6,560.12
  4. Step 4: Simplify right side
    13,965.55x = 137,311,708.55
  5. Step 5: Solve for x
    x = 137,311,708.55/13,965.55
  6. Step 6: Final answer
    x = 9,832.17

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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.