Home / 18,448.09-25,459.79-10,491.05

Finding the Fourth Proportional to 18,448.09, 25,459.79 and 10,491.05

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Solution

The fourth proportional to 18,448.09, 25,459.79 and 10,491.05 is: 14,478.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,448.09 : 25,459.79 = 10,491.05 : x
  2. Step 2: Convert to fraction form
    18,448.09/25,459.79 = 10,491.05/x
  3. Step 3: Cross multiply
    18,448.09x = 25,459.79 × 10,491.05
  4. Step 4: Simplify right side
    18,448.09x = 267,099,941.07
  5. Step 5: Solve for x
    x = 267,099,941.07/18,448.09
  6. Step 6: Final answer
    x = 14,478.46

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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.