Home / 18,431.54-25,435.56-10,476.40

Finding the Fourth Proportional to 18,431.54, 25,435.56 and 10,476.40

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Solution

The fourth proportional to 18,431.54, 25,435.56 and 10,476.40 is: 14,457.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,431.54 : 25,435.56 = 10,476.40 : x
  2. Step 2: Convert to fraction form
    18,431.54/25,435.56 = 10,476.40/x
  3. Step 3: Cross multiply
    18,431.54x = 25,435.56 × 10,476.40
  4. Step 4: Simplify right side
    18,431.54x = 266,473,100.78
  5. Step 5: Solve for x
    x = 266,473,100.78/18,431.54
  6. Step 6: Final answer
    x = 14,457.45

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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.