Home / 13,897.50-19,165.57-8,856.46

Finding the Fourth Proportional to 13,897.50, 19,165.57 and 8,856.46

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Solution

The fourth proportional to 13,897.50, 19,165.57 and 8,856.46 is: 12,213.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,897.50 : 19,165.57 = 8,856.46 : x
  2. Step 2: Convert to fraction form
    13,897.50/19,165.57 = 8,856.46/x
  3. Step 3: Cross multiply
    13,897.50x = 19,165.57 × 8,856.46
  4. Step 4: Simplify right side
    13,897.50x = 169,739,104.08
  5. Step 5: Solve for x
    x = 169,739,104.08/13,897.50
  6. Step 6: Final answer
    x = 12,213.64

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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.