Home / 15,839.81-21,839.06-10,164.54

Finding the Fourth Proportional to 15,839.81, 21,839.06 and 10,164.54

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Solution

The fourth proportional to 15,839.81, 21,839.06 and 10,164.54 is: 14,014.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,839.81 : 21,839.06 = 10,164.54 : x
  2. Step 2: Convert to fraction form
    15,839.81/21,839.06 = 10,164.54/x
  3. Step 3: Cross multiply
    15,839.81x = 21,839.06 × 10,164.54
  4. Step 4: Simplify right side
    15,839.81x = 221,984,024.34
  5. Step 5: Solve for x
    x = 221,984,024.34/15,839.81
  6. Step 6: Final answer
    x = 14,014.32

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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.