Home / 7,840.47-11,814.66-6,484.30

Finding the Fourth Proportional to 7,840.47, 11,814.66 and 6,484.30

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Solution

The fourth proportional to 7,840.47, 11,814.66 and 6,484.30 is: 9,771.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,840.47 : 11,814.66 = 6,484.30 : x
  2. Step 2: Convert to fraction form
    7,840.47/11,814.66 = 6,484.30/x
  3. Step 3: Cross multiply
    7,840.47x = 11,814.66 × 6,484.30
  4. Step 4: Simplify right side
    7,840.47x = 76,609,836.76
  5. Step 5: Solve for x
    x = 76,609,836.76/7,840.47
  6. Step 6: Final answer
    x = 9,771.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.