Home / 15,315.36-22,975.68-5,460.32

Finding the Fourth Proportional to 15,315.36, 22,975.68 and 5,460.32

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Solution

The fourth proportional to 15,315.36, 22,975.68 and 5,460.32 is: 8,191.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,315.36 : 22,975.68 = 5,460.32 : x
  2. Step 2: Convert to fraction form
    15,315.36/22,975.68 = 5,460.32/x
  3. Step 3: Cross multiply
    15,315.36x = 22,975.68 × 5,460.32
  4. Step 4: Simplify right side
    15,315.36x = 125,454,565.02
  5. Step 5: Solve for x
    x = 125,454,565.02/15,315.36
  6. Step 6: Final answer
    x = 8,191.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.