Home / 15,450.56-21,325.60-10,152.56

Finding the Fourth Proportional to 15,450.56, 21,325.60 and 10,152.56

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Solution

The fourth proportional to 15,450.56, 21,325.60 and 10,152.56 is: 14,013.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,450.56 : 21,325.60 = 10,152.56 : x
  2. Step 2: Convert to fraction form
    15,450.56/21,325.60 = 10,152.56/x
  3. Step 3: Cross multiply
    15,450.56x = 21,325.60 × 10,152.56
  4. Step 4: Simplify right side
    15,450.56x = 216,509,433.54
  5. Step 5: Solve for x
    x = 216,509,433.54/15,450.56
  6. Step 6: Final answer
    x = 14,013.05

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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.