Home / 8,475.49-12,712.42-5,186.89

Finding the Fourth Proportional to 8,475.49, 12,712.42 and 5,186.89

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Solution

The fourth proportional to 8,475.49, 12,712.42 and 5,186.89 is: 7,779.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,475.49 : 12,712.42 = 5,186.89 : x
  2. Step 2: Convert to fraction form
    8,475.49/12,712.42 = 5,186.89/x
  3. Step 3: Cross multiply
    8,475.49x = 12,712.42 × 5,186.89
  4. Step 4: Simplify right side
    8,475.49x = 65,937,924.17
  5. Step 5: Solve for x
    x = 65,937,924.17/8,475.49
  6. Step 6: Final answer
    x = 7,779.84

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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.