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Finding the Fourth Proportional to 12,661,609, 17,472,996 and 6,860,547.76

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Solution

The fourth proportional to 12,661,609, 17,472,996 and 6,860,547.76 is: 9,467,542.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,661,609 : 17,472,996 = 6,860,547.76 : x
  2. Step 2: Convert to fraction form
    12,661,609/17,472,996 = 6,860,547.76/x
  3. Step 3: Cross multiply
    12,661,609x = 17,472,996 × 6,860,547.76
  4. Step 4: Simplify right side
    12,661,609x = 119,874,323,568,288.95
  5. Step 5: Solve for x
    x = 119,874,323,568,288.95/12,661,609
  6. Step 6: Final answer
    x = 9,467,542.68

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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.