Home / 11,125.84-15,321-9,946.48

Finding the Fourth Proportional to 11,125.84, 15,321 and 9,946.48

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Solution

The fourth proportional to 11,125.84, 15,321 and 9,946.48 is: 13,696.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.84 : 15,321 = 9,946.48 : x
  2. Step 2: Convert to fraction form
    11,125.84/15,321 = 9,946.48/x
  3. Step 3: Cross multiply
    11,125.84x = 15,321 × 9,946.48
  4. Step 4: Simplify right side
    11,125.84x = 152,390,020.08
  5. Step 5: Solve for x
    x = 152,390,020.08/11,125.84
  6. Step 6: Final answer
    x = 13,696.95

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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.