Home / 19,278.42-26,611.56-12,565.68

Finding the Fourth Proportional to 19,278.42, 26,611.56 and 12,565.68

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Solution

The fourth proportional to 19,278.42, 26,611.56 and 12,565.68 is: 17,345.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.42 : 26,611.56 = 12,565.68 : x
  2. Step 2: Convert to fraction form
    19,278.42/26,611.56 = 12,565.68/x
  3. Step 3: Cross multiply
    19,278.42x = 26,611.56 × 12,565.68
  4. Step 4: Simplify right side
    19,278.42x = 334,392,347.26
  5. Step 5: Solve for x
    x = 334,392,347.26/19,278.42
  6. Step 6: Final answer
    x = 17,345.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.