Home / 15,390.18-23,058.74-12,019.77

Finding the Fourth Proportional to 15,390.18, 23,058.74 and 12,019.77

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Solution

The fourth proportional to 15,390.18, 23,058.74 and 12,019.77 is: 18,008.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,390.18 : 23,058.74 = 12,019.77 : x
  2. Step 2: Convert to fraction form
    15,390.18/23,058.74 = 12,019.77/x
  3. Step 3: Cross multiply
    15,390.18x = 23,058.74 × 12,019.77
  4. Step 4: Simplify right side
    15,390.18x = 277,160,781.34
  5. Step 5: Solve for x
    x = 277,160,781.34/15,390.18
  6. Step 6: Final answer
    x = 18,008.94

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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.