Home / 12,393.37-18,590.09-8,712.06

Finding the Fourth Proportional to 12,393.37, 18,590.09 and 8,712.06

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Solution

The fourth proportional to 12,393.37, 18,590.09 and 8,712.06 is: 13,068.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,393.37 : 18,590.09 = 8,712.06 : x
  2. Step 2: Convert to fraction form
    12,393.37/18,590.09 = 8,712.06/x
  3. Step 3: Cross multiply
    12,393.37x = 18,590.09 × 8,712.06
  4. Step 4: Simplify right side
    12,393.37x = 161,957,979.49
  5. Step 5: Solve for x
    x = 161,957,979.49/12,393.37
  6. Step 6: Final answer
    x = 13,068.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.