Home / 15,399.54-23,099.31-4,305.78

Finding the Fourth Proportional to 15,399.54, 23,099.31 and 4,305.78

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Solution

The fourth proportional to 15,399.54, 23,099.31 and 4,305.78 is: 6,458.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,399.54 : 23,099.31 = 4,305.78 : x
  2. Step 2: Convert to fraction form
    15,399.54/23,099.31 = 4,305.78/x
  3. Step 3: Cross multiply
    15,399.54x = 23,099.31 × 4,305.78
  4. Step 4: Simplify right side
    15,399.54x = 99,460,547.01
  5. Step 5: Solve for x
    x = 99,460,547.01/15,399.54
  6. Step 6: Final answer
    x = 6,458.67

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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.