Home / 13,157.68-18,159.60-7,568.32

Finding the Fourth Proportional to 13,157.68, 18,159.60 and 7,568.32

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Solution

The fourth proportional to 13,157.68, 18,159.60 and 7,568.32 is: 10,445.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,157.68 : 18,159.60 = 7,568.32 : x
  2. Step 2: Convert to fraction form
    13,157.68/18,159.60 = 7,568.32/x
  3. Step 3: Cross multiply
    13,157.68x = 18,159.60 × 7,568.32
  4. Step 4: Simplify right side
    13,157.68x = 137,437,663.87
  5. Step 5: Solve for x
    x = 137,437,663.87/13,157.68
  6. Step 6: Final answer
    x = 10,445.43

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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.