Home / 12,556.10-17,329.80-8,307.24

Finding the Fourth Proportional to 12,556.10, 17,329.80 and 8,307.24

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Solution

The fourth proportional to 12,556.10, 17,329.80 and 8,307.24 is: 11,465.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.10 : 17,329.80 = 8,307.24 : x
  2. Step 2: Convert to fraction form
    12,556.10/17,329.80 = 8,307.24/x
  3. Step 3: Cross multiply
    12,556.10x = 17,329.80 × 8,307.24
  4. Step 4: Simplify right side
    12,556.10x = 143,962,807.75
  5. Step 5: Solve for x
    x = 143,962,807.75/12,556.10
  6. Step 6: Final answer
    x = 11,465.57

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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.