Home / 19,349.72-26,692.76-12,639.28

Finding the Fourth Proportional to 19,349.72, 26,692.76 and 12,639.28

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Solution

The fourth proportional to 19,349.72, 26,692.76 and 12,639.28 is: 17,435.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,349.72 : 26,692.76 = 12,639.28 : x
  2. Step 2: Convert to fraction form
    19,349.72/26,692.76 = 12,639.28/x
  3. Step 3: Cross multiply
    19,349.72x = 26,692.76 × 12,639.28
  4. Step 4: Simplify right side
    19,349.72x = 337,377,267.61
  5. Step 5: Solve for x
    x = 337,377,267.61/19,349.72
  6. Step 6: Final answer
    x = 17,435.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.