Home / 13,490.07-20,222.34-4,719.32

Finding the Fourth Proportional to 13,490.07, 20,222.34 and 4,719.32

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Solution

The fourth proportional to 13,490.07, 20,222.34 and 4,719.32 is: 7,074.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.07 : 20,222.34 = 4,719.32 : x
  2. Step 2: Convert to fraction form
    13,490.07/20,222.34 = 4,719.32/x
  3. Step 3: Cross multiply
    13,490.07x = 20,222.34 × 4,719.32
  4. Step 4: Simplify right side
    13,490.07x = 95,435,693.61
  5. Step 5: Solve for x
    x = 95,435,693.61/13,490.07
  6. Step 6: Final answer
    x = 7,074.51

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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.