Home / 12,721,405.58-17,555,526.42-6,920,173.49

Finding the Fourth Proportional to 12,721,405.58, 17,555,526.42 and 6,920,173.49

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Solution

The fourth proportional to 12,721,405.58, 17,555,526.42 and 6,920,173.49 is: 9,549,832.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721,405.58 : 17,555,526.42 = 6,920,173.49 : x
  2. Step 2: Convert to fraction form
    12,721,405.58/17,555,526.42 = 6,920,173.49/x
  3. Step 3: Cross multiply
    12,721,405.58x = 17,555,526.42 × 6,920,173.49
  4. Step 4: Simplify right side
    12,721,405.58x = 121,487,288,446,900.98
  5. Step 5: Solve for x
    x = 121,487,288,446,900.98/12,721,405.58
  6. Step 6: Final answer
    x = 9,549,832.18

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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.