Home / 19,479.74-26,881.36-12,313.55

Finding the Fourth Proportional to 19,479.74, 26,881.36 and 12,313.55

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Solution

The fourth proportional to 19,479.74, 26,881.36 and 12,313.55 is: 16,992.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,479.74 : 26,881.36 = 12,313.55 : x
  2. Step 2: Convert to fraction form
    19,479.74/26,881.36 = 12,313.55/x
  3. Step 3: Cross multiply
    19,479.74x = 26,881.36 × 12,313.55
  4. Step 4: Simplify right side
    19,479.74x = 331,005,006.85
  5. Step 5: Solve for x
    x = 331,005,006.85/19,479.74
  6. Step 6: Final answer
    x = 16,992.27

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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.