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Finding the Fourth Proportional to 7,927.70, 10,930.30 and 5,090.08

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Solution

The fourth proportional to 7,927.70, 10,930.30 and 5,090.08 is: 7,017.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,927.70 : 10,930.30 = 5,090.08 : x
  2. Step 2: Convert to fraction form
    7,927.70/10,930.30 = 5,090.08/x
  3. Step 3: Cross multiply
    7,927.70x = 10,930.30 × 5,090.08
  4. Step 4: Simplify right side
    7,927.70x = 55,636,101.42
  5. Step 5: Solve for x
    x = 55,636,101.42/7,927.70
  6. Step 6: Final answer
    x = 7,017.94

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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.