Home / 15,783.14-23,630.51-11,890.28

Finding the Fourth Proportional to 15,783.14, 23,630.51 and 11,890.28

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Solution

The fourth proportional to 15,783.14, 23,630.51 and 11,890.28 is: 17,802.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,783.14 : 23,630.51 = 11,890.28 : x
  2. Step 2: Convert to fraction form
    15,783.14/23,630.51 = 11,890.28/x
  3. Step 3: Cross multiply
    15,783.14x = 23,630.51 × 11,890.28
  4. Step 4: Simplify right side
    15,783.14x = 280,973,202.84
  5. Step 5: Solve for x
    x = 280,973,202.84/15,783.14
  6. Step 6: Final answer
    x = 17,802.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.