Home / 13,801.50-19,048.23-8,215.74

Finding the Fourth Proportional to 13,801.50, 19,048.23 and 8,215.74

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Solution

The fourth proportional to 13,801.50, 19,048.23 and 8,215.74 is: 11,339.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,801.50 : 19,048.23 = 8,215.74 : x
  2. Step 2: Convert to fraction form
    13,801.50/19,048.23 = 8,215.74/x
  3. Step 3: Cross multiply
    13,801.50x = 19,048.23 × 8,215.74
  4. Step 4: Simplify right side
    13,801.50x = 156,495,305.14
  5. Step 5: Solve for x
    x = 156,495,305.14/13,801.50
  6. Step 6: Final answer
    x = 11,339.01

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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.