Home / 13,156.20-19,727.10-4,386.60

Finding the Fourth Proportional to 13,156.20, 19,727.10 and 4,386.60

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Solution

The fourth proportional to 13,156.20, 19,727.10 and 4,386.60 is: 6,577.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156.20 : 19,727.10 = 4,386.60 : x
  2. Step 2: Convert to fraction form
    13,156.20/19,727.10 = 4,386.60/x
  3. Step 3: Cross multiply
    13,156.20x = 19,727.10 × 4,386.60
  4. Step 4: Simplify right side
    13,156.20x = 86,534,896.86
  5. Step 5: Solve for x
    x = 86,534,896.86/13,156.20
  6. Step 6: Final answer
    x = 6,577.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.