Home / 7,221,718.86-9,960,161-6,348,686.89

Finding the Fourth Proportional to 7,221,718.86, 9,960,161 and 6,348,686.89

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Solution

The fourth proportional to 7,221,718.86, 9,960,161 and 6,348,686.89 is: 8,756,079.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221,718.86 : 9,960,161 = 6,348,686.89 : x
  2. Step 2: Convert to fraction form
    7,221,718.86/9,960,161 = 6,348,686.89/x
  3. Step 3: Cross multiply
    7,221,718.86x = 9,960,161 × 6,348,686.89
  4. Step 4: Simplify right side
    7,221,718.86x = 63,233,943,513,188.48
  5. Step 5: Solve for x
    x = 63,233,943,513,188.48/7,221,718.86
  6. Step 6: Final answer
    x = 8,756,079.37

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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.