Home / 7,835.55-10,812.87-4,386.09

Finding the Fourth Proportional to 7,835.55, 10,812.87 and 4,386.09

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Solution

The fourth proportional to 7,835.55, 10,812.87 and 4,386.09 is: 6,052.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,835.55 : 10,812.87 = 4,386.09 : x
  2. Step 2: Convert to fraction form
    7,835.55/10,812.87 = 4,386.09/x
  3. Step 3: Cross multiply
    7,835.55x = 10,812.87 × 4,386.09
  4. Step 4: Simplify right side
    7,835.55x = 47,426,157.96
  5. Step 5: Solve for x
    x = 47,426,157.96/7,835.55
  6. Step 6: Final answer
    x = 6,052.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.