Home / 15,696.85-21,660.53-8,888.93

Finding the Fourth Proportional to 15,696.85, 21,660.53 and 8,888.93

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Solution

The fourth proportional to 15,696.85, 21,660.53 and 8,888.93 is: 12,266.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,696.85 : 21,660.53 = 8,888.93 : x
  2. Step 2: Convert to fraction form
    15,696.85/21,660.53 = 8,888.93/x
  3. Step 3: Cross multiply
    15,696.85x = 21,660.53 × 8,888.93
  4. Step 4: Simplify right side
    15,696.85x = 192,538,848.85
  5. Step 5: Solve for x
    x = 192,538,848.85/15,696.85
  6. Step 6: Final answer
    x = 12,266.08

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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.