Home / 12,686,921.14-17,507,968.46-6,885,702.96

Finding the Fourth Proportional to 12,686,921.14, 17,507,968.46 and 6,885,702.96

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Solution

The fourth proportional to 12,686,921.14, 17,507,968.46 and 6,885,702.96 is: 9,502,279.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,686,921.14 : 17,507,968.46 = 6,885,702.96 : x
  2. Step 2: Convert to fraction form
    12,686,921.14/17,507,968.46 = 6,885,702.96/x
  3. Step 3: Cross multiply
    12,686,921.14x = 17,507,968.46 × 6,885,702.96
  4. Step 4: Simplify right side
    12,686,921.14x = 120,554,670,126,640.28
  5. Step 5: Solve for x
    x = 120,554,670,126,640.28/12,686,921.14
  6. Step 6: Final answer
    x = 9,502,279.46

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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.