Home / 7,918.39-10,929.53-4,932.43

Finding the Fourth Proportional to 7,918.39, 10,929.53 and 4,932.43

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Solution

The fourth proportional to 7,918.39, 10,929.53 and 4,932.43 is: 6,808.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.39 : 10,929.53 = 4,932.43 : x
  2. Step 2: Convert to fraction form
    7,918.39/10,929.53 = 4,932.43/x
  3. Step 3: Cross multiply
    7,918.39x = 10,929.53 × 4,932.43
  4. Step 4: Simplify right side
    7,918.39x = 53,909,126.67
  5. Step 5: Solve for x
    x = 53,909,126.67/7,918.39
  6. Step 6: Final answer
    x = 6,808.09

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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.