Home / 18,828.81-25,984.04-10,331.78

Finding the Fourth Proportional to 18,828.81, 25,984.04 and 10,331.78

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Solution

The fourth proportional to 18,828.81, 25,984.04 and 10,331.78 is: 14,258.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,828.81 : 25,984.04 = 10,331.78 : x
  2. Step 2: Convert to fraction form
    18,828.81/25,984.04 = 10,331.78/x
  3. Step 3: Cross multiply
    18,828.81x = 25,984.04 × 10,331.78
  4. Step 4: Simplify right side
    18,828.81x = 268,461,203.21
  5. Step 5: Solve for x
    x = 268,461,203.21/18,828.81
  6. Step 6: Final answer
    x = 14,258.00

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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.