Home / 12,752.52-19,137.40-7,690.92

Finding the Fourth Proportional to 12,752.52, 19,137.40 and 7,690.92

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Solution

The fourth proportional to 12,752.52, 19,137.40 and 7,690.92 is: 11,541.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,752.52 : 19,137.40 = 7,690.92 : x
  2. Step 2: Convert to fraction form
    12,752.52/19,137.40 = 7,690.92/x
  3. Step 3: Cross multiply
    12,752.52x = 19,137.40 × 7,690.92
  4. Step 4: Simplify right side
    12,752.52x = 147,184,212.41
  5. Step 5: Solve for x
    x = 147,184,212.41/12,752.52
  6. Step 6: Final answer
    x = 11,541.58

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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.