Home / 13,309.12-19,977.52-9,803.08

Finding the Fourth Proportional to 13,309.12, 19,977.52 and 9,803.08

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Solution

The fourth proportional to 13,309.12, 19,977.52 and 9,803.08 is: 14,714.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.12 : 19,977.52 = 9,803.08 : x
  2. Step 2: Convert to fraction form
    13,309.12/19,977.52 = 9,803.08/x
  3. Step 3: Cross multiply
    13,309.12x = 19,977.52 × 9,803.08
  4. Step 4: Simplify right side
    13,309.12x = 195,841,226.76
  5. Step 5: Solve for x
    x = 195,841,226.76/13,309.12
  6. Step 6: Final answer
    x = 14,714.81

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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.