Home / 12,686,917.76-17,507,963.80-6,885,699.58

Finding the Fourth Proportional to 12,686,917.76, 17,507,963.80 and 6,885,699.58

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Solution

The fourth proportional to 12,686,917.76, 17,507,963.80 and 6,885,699.58 is: 9,502,274.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,686,917.76 : 17,507,963.80 = 6,885,699.58 : x
  2. Step 2: Convert to fraction form
    12,686,917.76/17,507,963.80 = 6,885,699.58/x
  3. Step 3: Cross multiply
    12,686,917.76x = 17,507,963.80 × 6,885,699.58
  4. Step 4: Simplify right side
    12,686,917.76x = 120,554,578,984,315.20
  5. Step 5: Solve for x
    x = 120,554,578,984,315.20/12,686,917.76
  6. Step 6: Final answer
    x = 9,502,274.81

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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.