Home / 8,068.63-12,042.75-7,871.77

Finding the Fourth Proportional to 8,068.63, 12,042.75 and 7,871.77

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Solution

The fourth proportional to 8,068.63, 12,042.75 and 7,871.77 is: 11,748.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,068.63 : 12,042.75 = 7,871.77 : x
  2. Step 2: Convert to fraction form
    8,068.63/12,042.75 = 7,871.77/x
  3. Step 3: Cross multiply
    8,068.63x = 12,042.75 × 7,871.77
  4. Step 4: Simplify right side
    8,068.63x = 94,797,758.17
  5. Step 5: Solve for x
    x = 94,797,758.17/8,068.63
  6. Step 6: Final answer
    x = 11,748.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.