Home / 15,560.69-21,467.61-9,581.99

Finding the Fourth Proportional to 15,560.69, 21,467.61 and 9,581.99

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Solution

The fourth proportional to 15,560.69, 21,467.61 and 9,581.99 is: 13,219.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,560.69 : 21,467.61 = 9,581.99 : x
  2. Step 2: Convert to fraction form
    15,560.69/21,467.61 = 9,581.99/x
  3. Step 3: Cross multiply
    15,560.69x = 21,467.61 × 9,581.99
  4. Step 4: Simplify right side
    15,560.69x = 205,702,317.01
  5. Step 5: Solve for x
    x = 205,702,317.01/15,560.69
  6. Step 6: Final answer
    x = 13,219.36

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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.