Home / 13,162.07-18,167.99-10,478.23

Finding the Fourth Proportional to 13,162.07, 18,167.99 and 10,478.23

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Solution

The fourth proportional to 13,162.07, 18,167.99 and 10,478.23 is: 14,463.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162.07 : 18,167.99 = 10,478.23 : x
  2. Step 2: Convert to fraction form
    13,162.07/18,167.99 = 10,478.23/x
  3. Step 3: Cross multiply
    13,162.07x = 18,167.99 × 10,478.23
  4. Step 4: Simplify right side
    13,162.07x = 190,368,280.05
  5. Step 5: Solve for x
    x = 190,368,280.05/13,162.07
  6. Step 6: Final answer
    x = 14,463.40

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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.