Home / 15,435.56-21,301.03-8,362.10

Finding the Fourth Proportional to 15,435.56, 21,301.03 and 8,362.10

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Solution

The fourth proportional to 15,435.56, 21,301.03 and 8,362.10 is: 11,539.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,435.56 : 21,301.03 = 8,362.10 : x
  2. Step 2: Convert to fraction form
    15,435.56/21,301.03 = 8,362.10/x
  3. Step 3: Cross multiply
    15,435.56x = 21,301.03 × 8,362.10
  4. Step 4: Simplify right side
    15,435.56x = 178,121,342.96
  5. Step 5: Solve for x
    x = 178,121,342.96/15,435.56
  6. Step 6: Final answer
    x = 11,539.67

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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.