Home / 13,929.18-19,200.15-13,652.70

Finding the Fourth Proportional to 13,929.18, 19,200.15 and 13,652.70

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Solution

The fourth proportional to 13,929.18, 19,200.15 and 13,652.70 is: 18,819.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.18 : 19,200.15 = 13,652.70 : x
  2. Step 2: Convert to fraction form
    13,929.18/19,200.15 = 13,652.70/x
  3. Step 3: Cross multiply
    13,929.18x = 19,200.15 × 13,652.70
  4. Step 4: Simplify right side
    13,929.18x = 262,133,887.91
  5. Step 5: Solve for x
    x = 262,133,887.91/13,929.18
  6. Step 6: Final answer
    x = 18,819.05

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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.