Home / 15,557.32-21,462.98-9,578.60

Finding the Fourth Proportional to 15,557.32, 21,462.98 and 9,578.60

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Solution

The fourth proportional to 15,557.32, 21,462.98 and 9,578.60 is: 13,214.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,557.32 : 21,462.98 = 9,578.60 : x
  2. Step 2: Convert to fraction form
    15,557.32/21,462.98 = 9,578.60/x
  3. Step 3: Cross multiply
    15,557.32x = 21,462.98 × 9,578.60
  4. Step 4: Simplify right side
    15,557.32x = 205,585,346.24
  5. Step 5: Solve for x
    x = 205,585,346.24/15,557.32
  6. Step 6: Final answer
    x = 13,214.71

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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.