Home / 12,686,814.56-17,507,972.06-6,885,665.84

Finding the Fourth Proportional to 12,686,814.56, 17,507,972.06 and 6,885,665.84

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Solution

The fourth proportional to 12,686,814.56, 17,507,972.06 and 6,885,665.84 is: 9,502,310.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,686,814.56 : 17,507,972.06 = 6,885,665.84 : x
  2. Step 2: Convert to fraction form
    12,686,814.56/17,507,972.06 = 6,885,665.84/x
  3. Step 3: Cross multiply
    12,686,814.56x = 17,507,972.06 × 6,885,665.84
  4. Step 4: Simplify right side
    12,686,814.56x = 120,554,045,019,248.23
  5. Step 5: Solve for x
    x = 120,554,045,019,248.23/12,686,814.56
  6. Step 6: Final answer
    x = 9,502,310.02

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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.