Home / 13,781.37-19,017.95-8,039.93

Finding the Fourth Proportional to 13,781.37, 19,017.95 and 8,039.93

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Solution

The fourth proportional to 13,781.37, 19,017.95 and 8,039.93 is: 11,094.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,781.37 : 19,017.95 = 8,039.93 : x
  2. Step 2: Convert to fraction form
    13,781.37/19,017.95 = 8,039.93/x
  3. Step 3: Cross multiply
    13,781.37x = 19,017.95 × 8,039.93
  4. Step 4: Simplify right side
    13,781.37x = 152,902,911.75
  5. Step 5: Solve for x
    x = 152,902,911.75/13,781.37
  6. Step 6: Final answer
    x = 11,094.90

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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.