Home / 12,886,636.58-17,783,625.42-7,085,792

Finding the Fourth Proportional to 12,886,636.58, 17,783,625.42 and 7,085,792

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Solution

The fourth proportional to 12,886,636.58, 17,783,625.42 and 7,085,792 is: 9,778,429.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886,636.58 : 17,783,625.42 = 7,085,792 : x
  2. Step 2: Convert to fraction form
    12,886,636.58/17,783,625.42 = 7,085,792/x
  3. Step 3: Cross multiply
    12,886,636.58x = 17,783,625.42 × 7,085,792
  4. Step 4: Simplify right side
    12,886,636.58x = 126,011,070,732,032.66
  5. Step 5: Solve for x
    x = 126,011,070,732,032.66/12,886,636.58
  6. Step 6: Final answer
    x = 9,778,429.77

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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.