Home / 19,320.21-26,668.35-11,771.46

Finding the Fourth Proportional to 19,320.21, 26,668.35 and 11,771.46

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Solution

The fourth proportional to 19,320.21, 26,668.35 and 11,771.46 is: 16,248.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.21 : 26,668.35 = 11,771.46 : x
  2. Step 2: Convert to fraction form
    19,320.21/26,668.35 = 11,771.46/x
  3. Step 3: Cross multiply
    19,320.21x = 26,668.35 × 11,771.46
  4. Step 4: Simplify right side
    19,320.21x = 313,925,415.29
  5. Step 5: Solve for x
    x = 313,925,415.29/19,320.21
  6. Step 6: Final answer
    x = 16,248.55

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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.