Home / 13,157.28-19,740.78-6,141.24

Finding the Fourth Proportional to 13,157.28, 19,740.78 and 6,141.24

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Solution

The fourth proportional to 13,157.28, 19,740.78 and 6,141.24 is: 9,214.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,157.28 : 19,740.78 = 6,141.24 : x
  2. Step 2: Convert to fraction form
    13,157.28/19,740.78 = 6,141.24/x
  3. Step 3: Cross multiply
    13,157.28x = 19,740.78 × 6,141.24
  4. Step 4: Simplify right side
    13,157.28x = 121,232,867.77
  5. Step 5: Solve for x
    x = 121,232,867.77/13,157.28
  6. Step 6: Final answer
    x = 9,214.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.