Home / 15,285.58-21,085.14-9,611.33

Finding the Fourth Proportional to 15,285.58, 21,085.14 and 9,611.33

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Solution

The fourth proportional to 15,285.58, 21,085.14 and 9,611.33 is: 13,258.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285.58 : 21,085.14 = 9,611.33 : x
  2. Step 2: Convert to fraction form
    15,285.58/21,085.14 = 9,611.33/x
  3. Step 3: Cross multiply
    15,285.58x = 21,085.14 × 9,611.33
  4. Step 4: Simplify right side
    15,285.58x = 202,656,190.58
  5. Step 5: Solve for x
    x = 202,656,190.58/15,285.58
  6. Step 6: Final answer
    x = 13,258.00

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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.