Home / 12,638,422.98-17,440,985.21-6,837,203.39

Finding the Fourth Proportional to 12,638,422.98, 17,440,985.21 and 6,837,203.39

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Solution

The fourth proportional to 12,638,422.98, 17,440,985.21 and 6,837,203.39 is: 9,435,319.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,638,422.98 : 17,440,985.21 = 6,837,203.39 : x
  2. Step 2: Convert to fraction form
    12,638,422.98/17,440,985.21 = 6,837,203.39/x
  3. Step 3: Cross multiply
    12,638,422.98x = 17,440,985.21 × 6,837,203.39
  4. Step 4: Simplify right side
    12,638,422.98x = 119,247,563,081,360.91
  5. Step 5: Solve for x
    x = 119,247,563,081,360.91/12,638,422.98
  6. Step 6: Final answer
    x = 9,435,319.84

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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.