Home / 15,880.84-21,922.59-11,119.50

Finding the Fourth Proportional to 15,880.84, 21,922.59 and 11,119.50

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Solution

The fourth proportional to 15,880.84, 21,922.59 and 11,119.50 is: 15,349.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,880.84 : 21,922.59 = 11,119.50 : x
  2. Step 2: Convert to fraction form
    15,880.84/21,922.59 = 11,119.50/x
  3. Step 3: Cross multiply
    15,880.84x = 21,922.59 × 11,119.50
  4. Step 4: Simplify right side
    15,880.84x = 243,768,239.51
  5. Step 5: Solve for x
    x = 243,768,239.51/15,880.84
  6. Step 6: Final answer
    x = 15,349.83

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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.