Home / 15,285.24-21,106.08-12,453.03

Finding the Fourth Proportional to 15,285.24, 21,106.08 and 12,453.03

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Solution

The fourth proportional to 15,285.24, 21,106.08 and 12,453.03 is: 17,195.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285.24 : 21,106.08 = 12,453.03 : x
  2. Step 2: Convert to fraction form
    15,285.24/21,106.08 = 12,453.03/x
  3. Step 3: Cross multiply
    15,285.24x = 21,106.08 × 12,453.03
  4. Step 4: Simplify right side
    15,285.24x = 262,834,647.42
  5. Step 5: Solve for x
    x = 262,834,647.42/15,285.24
  6. Step 6: Final answer
    x = 17,195.32

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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.