Home / 12,686,923.55-17,507,971.78-6,885,705.37

Finding the Fourth Proportional to 12,686,923.55, 17,507,971.78 and 6,885,705.37

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Solution

The fourth proportional to 12,686,923.55, 17,507,971.78 and 6,885,705.37 is: 9,502,282.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,686,923.55 : 17,507,971.78 = 6,885,705.37 : x
  2. Step 2: Convert to fraction form
    12,686,923.55/17,507,971.78 = 6,885,705.37/x
  3. Step 3: Cross multiply
    12,686,923.55x = 17,507,971.78 × 6,885,705.37
  4. Step 4: Simplify right side
    12,686,923.55x = 120,554,735,215,814.61
  5. Step 5: Solve for x
    x = 120,554,735,215,814.61/12,686,923.55
  6. Step 6: Final answer
    x = 9,502,282.78

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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.