Home / 15,410.10-21,307.41-13,441.80

Finding the Fourth Proportional to 15,410.10, 21,307.41 and 13,441.80

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Solution

The fourth proportional to 15,410.10, 21,307.41 and 13,441.80 is: 18,585.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,410.10 : 21,307.41 = 13,441.80 : x
  2. Step 2: Convert to fraction form
    15,410.10/21,307.41 = 13,441.80/x
  3. Step 3: Cross multiply
    15,410.10x = 21,307.41 × 13,441.80
  4. Step 4: Simplify right side
    15,410.10x = 286,409,943.74
  5. Step 5: Solve for x
    x = 286,409,943.74/15,410.10
  6. Step 6: Final answer
    x = 18,585.86

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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.