Home / 19,479.63-26,881.91-11,522.40

Finding the Fourth Proportional to 19,479.63, 26,881.91 and 11,522.40

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Solution

The fourth proportional to 19,479.63, 26,881.91 and 11,522.40 is: 15,900.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,479.63 : 26,881.91 = 11,522.40 : x
  2. Step 2: Convert to fraction form
    19,479.63/26,881.91 = 11,522.40/x
  3. Step 3: Cross multiply
    19,479.63x = 26,881.91 × 11,522.40
  4. Step 4: Simplify right side
    19,479.63x = 309,744,119.78
  5. Step 5: Solve for x
    x = 309,744,119.78/19,479.63
  6. Step 6: Final answer
    x = 15,900.92

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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.