Home / 15,829.56-21,863.16-10,515.24

Finding the Fourth Proportional to 15,829.56, 21,863.16 and 10,515.24

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Solution

The fourth proportional to 15,829.56, 21,863.16 and 10,515.24 is: 14,523.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,829.56 : 21,863.16 = 10,515.24 : x
  2. Step 2: Convert to fraction form
    15,829.56/21,863.16 = 10,515.24/x
  3. Step 3: Cross multiply
    15,829.56x = 21,863.16 × 10,515.24
  4. Step 4: Simplify right side
    15,829.56x = 229,896,374.56
  5. Step 5: Solve for x
    x = 229,896,374.56/15,829.56
  6. Step 6: Final answer
    x = 14,523.23

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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.