Home / 13,971.24-19,280.50-8,002.90

Finding the Fourth Proportional to 13,971.24, 19,280.50 and 8,002.90

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Solution

The fourth proportional to 13,971.24, 19,280.50 and 8,002.90 is: 11,044.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.24 : 19,280.50 = 8,002.90 : x
  2. Step 2: Convert to fraction form
    13,971.24/19,280.50 = 8,002.90/x
  3. Step 3: Cross multiply
    13,971.24x = 19,280.50 × 8,002.90
  4. Step 4: Simplify right side
    13,971.24x = 154,299,913.45
  5. Step 5: Solve for x
    x = 154,299,913.45/13,971.24
  6. Step 6: Final answer
    x = 11,044.11

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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.