Home / 12,686,920.93-17,507,968.21-6,885,702.75

Finding the Fourth Proportional to 12,686,920.93, 17,507,968.21 and 6,885,702.75

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Solution

The fourth proportional to 12,686,920.93, 17,507,968.21 and 6,885,702.75 is: 9,502,279.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,686,920.93 : 17,507,968.21 = 6,885,702.75 : x
  2. Step 2: Convert to fraction form
    12,686,920.93/17,507,968.21 = 6,885,702.75/x
  3. Step 3: Cross multiply
    12,686,920.93x = 17,507,968.21 × 6,885,702.75
  4. Step 4: Simplify right side
    12,686,920.93x = 120,554,664,902,886.62
  5. Step 5: Solve for x
    x = 120,554,664,902,886.62/12,686,920.93
  6. Step 6: Final answer
    x = 9,502,279.20

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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.