Home / 13,927.60-20,890.28-6,530.16

Finding the Fourth Proportional to 13,927.60, 20,890.28 and 6,530.16

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Solution

The fourth proportional to 13,927.60, 20,890.28 and 6,530.16 is: 9,794.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,927.60 : 20,890.28 = 6,530.16 : x
  2. Step 2: Convert to fraction form
    13,927.60/20,890.28 = 6,530.16/x
  3. Step 3: Cross multiply
    13,927.60x = 20,890.28 × 6,530.16
  4. Step 4: Simplify right side
    13,927.60x = 136,416,870.84
  5. Step 5: Solve for x
    x = 136,416,870.84/13,927.60
  6. Step 6: Final answer
    x = 9,794.71

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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.