Home / 12,965.10-19,398.58-7,702.94

Finding the Fourth Proportional to 12,965.10, 19,398.58 and 7,702.94

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Solution

The fourth proportional to 12,965.10, 19,398.58 and 7,702.94 is: 11,525.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,965.10 : 19,398.58 = 7,702.94 : x
  2. Step 2: Convert to fraction form
    12,965.10/19,398.58 = 7,702.94/x
  3. Step 3: Cross multiply
    12,965.10x = 19,398.58 × 7,702.94
  4. Step 4: Simplify right side
    12,965.10x = 149,425,981.57
  5. Step 5: Solve for x
    x = 149,425,981.57/12,965.10
  6. Step 6: Final answer
    x = 11,525.25

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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.