Home / 15,286.02-21,085.74-9,611.77

Finding the Fourth Proportional to 15,286.02, 21,085.74 and 9,611.77

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Solution

The fourth proportional to 15,286.02, 21,085.74 and 9,611.77 is: 13,258.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,286.02 : 21,085.74 = 9,611.77 : x
  2. Step 2: Convert to fraction form
    15,286.02/21,085.74 = 9,611.77/x
  3. Step 3: Cross multiply
    15,286.02x = 21,085.74 × 9,611.77
  4. Step 4: Simplify right side
    15,286.02x = 202,671,283.16
  5. Step 5: Solve for x
    x = 202,671,283.16/15,286.02
  6. Step 6: Final answer
    x = 13,258.60

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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.