Home / 13,012.05-17,956.63-7,043.77

Finding the Fourth Proportional to 13,012.05, 17,956.63 and 7,043.77

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Solution

The fourth proportional to 13,012.05, 17,956.63 and 7,043.77 is: 9,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012.05 : 17,956.63 = 7,043.77 : x
  2. Step 2: Convert to fraction form
    13,012.05/17,956.63 = 7,043.77/x
  3. Step 3: Cross multiply
    13,012.05x = 17,956.63 × 7,043.77
  4. Step 4: Simplify right side
    13,012.05x = 126,482,371.70
  5. Step 5: Solve for x
    x = 126,482,371.70/13,012.05
  6. Step 6: Final answer
    x = 9,720.40

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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.