Home / 15,453.60-21,324.08-10,975.72

Finding the Fourth Proportional to 15,453.60, 21,324.08 and 10,975.72

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Solution

The fourth proportional to 15,453.60, 21,324.08 and 10,975.72 is: 15,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,453.60 : 21,324.08 = 10,975.72 : x
  2. Step 2: Convert to fraction form
    15,453.60/21,324.08 = 10,975.72/x
  3. Step 3: Cross multiply
    15,453.60x = 21,324.08 × 10,975.72
  4. Step 4: Simplify right side
    15,453.60x = 234,047,131.34
  5. Step 5: Solve for x
    x = 234,047,131.34/15,453.60
  6. Step 6: Final answer
    x = 15,145.15

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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.