Home / 12,688,053.57-17,509,042.82-6,886,710.45

Finding the Fourth Proportional to 12,688,053.57, 17,509,042.82 and 6,886,710.45

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Solution

The fourth proportional to 12,688,053.57, 17,509,042.82 and 6,886,710.45 is: 9,503,404.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688,053.57 : 17,509,042.82 = 6,886,710.45 : x
  2. Step 2: Convert to fraction form
    12,688,053.57/17,509,042.82 = 6,886,710.45/x
  3. Step 3: Cross multiply
    12,688,053.57x = 17,509,042.82 × 6,886,710.45
  4. Step 4: Simplify right side
    12,688,053.57x = 120,579,708,175,208.27
  5. Step 5: Solve for x
    x = 120,579,708,175,208.27/12,688,053.57
  6. Step 6: Final answer
    x = 9,503,404.72

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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.