Home / 12,686,930.57-17,507,981.49-6,885,712.37

Finding the Fourth Proportional to 12,686,930.57, 17,507,981.49 and 6,885,712.37

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Solution

The fourth proportional to 12,686,930.57, 17,507,981.49 and 6,885,712.37 is: 9,502,292.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,686,930.57 : 17,507,981.49 = 6,885,712.37 : x
  2. Step 2: Convert to fraction form
    12,686,930.57/17,507,981.49 = 6,885,712.37/x
  3. Step 3: Cross multiply
    12,686,930.57x = 17,507,981.49 × 6,885,712.37
  4. Step 4: Simplify right side
    12,686,930.57x = 120,554,924,719,424.02
  5. Step 5: Solve for x
    x = 120,554,924,719,424.02/12,686,930.57
  6. Step 6: Final answer
    x = 9,502,292.46

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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.