Home / 19,515.91-26,931.82-10,563.21

Finding the Fourth Proportional to 19,515.91, 26,931.82 and 10,563.21

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Solution

The fourth proportional to 19,515.91, 26,931.82 and 10,563.21 is: 14,577.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,515.91 : 26,931.82 = 10,563.21 : x
  2. Step 2: Convert to fraction form
    19,515.91/26,931.82 = 10,563.21/x
  3. Step 3: Cross multiply
    19,515.91x = 26,931.82 × 10,563.21
  4. Step 4: Simplify right side
    19,515.91x = 284,486,470.34
  5. Step 5: Solve for x
    x = 284,486,470.34/19,515.91
  6. Step 6: Final answer
    x = 14,577.16

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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.