Home / 12,345.12-18,474.58-10,097.98

Finding the Fourth Proportional to 12,345.12, 18,474.58 and 10,097.98

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Solution

The fourth proportional to 12,345.12, 18,474.58 and 10,097.98 is: 15,111.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345.12 : 18,474.58 = 10,097.98 : x
  2. Step 2: Convert to fraction form
    12,345.12/18,474.58 = 10,097.98/x
  3. Step 3: Cross multiply
    12,345.12x = 18,474.58 × 10,097.98
  4. Step 4: Simplify right side
    12,345.12x = 186,555,939.35
  5. Step 5: Solve for x
    x = 186,555,939.35/12,345.12
  6. Step 6: Final answer
    x = 15,111.72

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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.