Home / 12,748.79-17,594.57-7,371.45

Finding the Fourth Proportional to 12,748.79, 17,594.57 and 7,371.45

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Solution

The fourth proportional to 12,748.79, 17,594.57 and 7,371.45 is: 10,173.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,748.79 : 17,594.57 = 7,371.45 : x
  2. Step 2: Convert to fraction form
    12,748.79/17,594.57 = 7,371.45/x
  3. Step 3: Cross multiply
    12,748.79x = 17,594.57 × 7,371.45
  4. Step 4: Simplify right side
    12,748.79x = 129,697,511.46
  5. Step 5: Solve for x
    x = 129,697,511.46/12,748.79
  6. Step 6: Final answer
    x = 10,173.32

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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.