Home / 12,729.76-19,091.40-8,567.44

Finding the Fourth Proportional to 12,729.76, 19,091.40 and 8,567.44

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Solution

The fourth proportional to 12,729.76, 19,091.40 and 8,567.44 is: 12,848.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,729.76 : 19,091.40 = 8,567.44 : x
  2. Step 2: Convert to fraction form
    12,729.76/19,091.40 = 8,567.44/x
  3. Step 3: Cross multiply
    12,729.76x = 19,091.40 × 8,567.44
  4. Step 4: Simplify right side
    12,729.76x = 163,564,424.02
  5. Step 5: Solve for x
    x = 163,564,424.02/12,729.76
  6. Step 6: Final answer
    x = 12,848.98

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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.