Home / 7,225.53-10,817.64-5,385.21

Finding the Fourth Proportional to 7,225.53, 10,817.64 and 5,385.21

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Solution

The fourth proportional to 7,225.53, 10,817.64 and 5,385.21 is: 8,062.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,225.53 : 10,817.64 = 5,385.21 : x
  2. Step 2: Convert to fraction form
    7,225.53/10,817.64 = 5,385.21/x
  3. Step 3: Cross multiply
    7,225.53x = 10,817.64 × 5,385.21
  4. Step 4: Simplify right side
    7,225.53x = 58,255,263.10
  5. Step 5: Solve for x
    x = 58,255,263.10/7,225.53
  6. Step 6: Final answer
    x = 8,062.42

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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.