Home / 15,710.55-21,658.24-12,495.66

Finding the Fourth Proportional to 15,710.55, 21,658.24 and 12,495.66

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Solution

The fourth proportional to 15,710.55, 21,658.24 and 12,495.66 is: 17,226.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,710.55 : 21,658.24 = 12,495.66 : x
  2. Step 2: Convert to fraction form
    15,710.55/21,658.24 = 12,495.66/x
  3. Step 3: Cross multiply
    15,710.55x = 21,658.24 × 12,495.66
  4. Step 4: Simplify right side
    15,710.55x = 270,634,003.24
  5. Step 5: Solve for x
    x = 270,634,003.24/15,710.55
  6. Step 6: Final answer
    x = 17,226.26

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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.