Home / 18,830.08-26,003.08-12,127.39

Finding the Fourth Proportional to 18,830.08, 26,003.08 and 12,127.39

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Solution

The fourth proportional to 18,830.08, 26,003.08 and 12,127.39 is: 16,747.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,830.08 : 26,003.08 = 12,127.39 : x
  2. Step 2: Convert to fraction form
    18,830.08/26,003.08 = 12,127.39/x
  3. Step 3: Cross multiply
    18,830.08x = 26,003.08 × 12,127.39
  4. Step 4: Simplify right side
    18,830.08x = 315,349,442.51
  5. Step 5: Solve for x
    x = 315,349,442.51/18,830.08
  6. Step 6: Final answer
    x = 16,747.11

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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.