Home / 12,320.08-18,468.14-9,815.16

Finding the Fourth Proportional to 12,320.08, 18,468.14 and 9,815.16

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Solution

The fourth proportional to 12,320.08, 18,468.14 and 9,815.16 is: 14,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320.08 : 18,468.14 = 9,815.16 : x
  2. Step 2: Convert to fraction form
    12,320.08/18,468.14 = 9,815.16/x
  3. Step 3: Cross multiply
    12,320.08x = 18,468.14 × 9,815.16
  4. Step 4: Simplify right side
    12,320.08x = 181,267,749.00
  5. Step 5: Solve for x
    x = 181,267,749.00/12,320.08
  6. Step 6: Final answer
    x = 14,713.20

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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.