Home / 15,174.64-20,933.57-10,140.10

Finding the Fourth Proportional to 15,174.64, 20,933.57 and 10,140.10

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Solution

The fourth proportional to 15,174.64, 20,933.57 and 10,140.10 is: 13,988.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,174.64 : 20,933.57 = 10,140.10 : x
  2. Step 2: Convert to fraction form
    15,174.64/20,933.57 = 10,140.10/x
  3. Step 3: Cross multiply
    15,174.64x = 20,933.57 × 10,140.10
  4. Step 4: Simplify right side
    15,174.64x = 212,268,526.89
  5. Step 5: Solve for x
    x = 212,268,526.89/15,174.64
  6. Step 6: Final answer
    x = 13,988.37

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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.