Home / 12,953.60-19,426.28-4,186.44

Finding the Fourth Proportional to 12,953.60, 19,426.28 and 4,186.44

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Solution

The fourth proportional to 12,953.60, 19,426.28 and 4,186.44 is: 6,278.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953.60 : 19,426.28 = 4,186.44 : x
  2. Step 2: Convert to fraction form
    12,953.60/19,426.28 = 4,186.44/x
  3. Step 3: Cross multiply
    12,953.60x = 19,426.28 × 4,186.44
  4. Step 4: Simplify right side
    12,953.60x = 81,326,955.64
  5. Step 5: Solve for x
    x = 81,326,955.64/12,953.60
  6. Step 6: Final answer
    x = 6,278.33

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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.