Home / 12,884.60-19,426.28-12,804.64

Finding the Fourth Proportional to 12,884.60, 19,426.28 and 12,804.64

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Solution

The fourth proportional to 12,884.60, 19,426.28 and 12,804.64 is: 19,305.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,884.60 : 19,426.28 = 12,804.64 : x
  2. Step 2: Convert to fraction form
    12,884.60/19,426.28 = 12,804.64/x
  3. Step 3: Cross multiply
    12,884.60x = 19,426.28 × 12,804.64
  4. Step 4: Simplify right side
    12,884.60x = 248,746,521.94
  5. Step 5: Solve for x
    x = 248,746,521.94/12,884.60
  6. Step 6: Final answer
    x = 19,305.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.