Home / 12,963,143.80-17,889,326.16-7,162,058.96

Finding the Fourth Proportional to 12,963,143.80, 17,889,326.16 and 7,162,058.96

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Solution

The fourth proportional to 12,963,143.80, 17,889,326.16 and 7,162,058.96 is: 9,883,745.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963,143.80 : 17,889,326.16 = 7,162,058.96 : x
  2. Step 2: Convert to fraction form
    12,963,143.80/17,889,326.16 = 7,162,058.96/x
  3. Step 3: Cross multiply
    12,963,143.80x = 17,889,326.16 × 7,162,058.96
  4. Step 4: Simplify right side
    12,963,143.80x = 128,124,408,712,590.39
  5. Step 5: Solve for x
    x = 128,124,408,712,590.39/12,963,143.80
  6. Step 6: Final answer
    x = 9,883,745.08

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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.