Home / 12,748.57-19,120.86-6,513.19

Finding the Fourth Proportional to 12,748.57, 19,120.86 and 6,513.19

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Solution

The fourth proportional to 12,748.57, 19,120.86 and 6,513.19 is: 9,768.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,748.57 : 19,120.86 = 6,513.19 : x
  2. Step 2: Convert to fraction form
    12,748.57/19,120.86 = 6,513.19/x
  3. Step 3: Cross multiply
    12,748.57x = 19,120.86 × 6,513.19
  4. Step 4: Simplify right side
    12,748.57x = 124,537,746.34
  5. Step 5: Solve for x
    x = 124,537,746.34/12,748.57
  6. Step 6: Final answer
    x = 9,768.76

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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.