Home / 19,038.62-26,271.72-11,381.72

Finding the Fourth Proportional to 19,038.62, 26,271.72 and 11,381.72

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Solution

The fourth proportional to 19,038.62, 26,271.72 and 11,381.72 is: 15,705.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,038.62 : 26,271.72 = 11,381.72 : x
  2. Step 2: Convert to fraction form
    19,038.62/26,271.72 = 11,381.72/x
  3. Step 3: Cross multiply
    19,038.62x = 26,271.72 × 11,381.72
  4. Step 4: Simplify right side
    19,038.62x = 299,017,360.96
  5. Step 5: Solve for x
    x = 299,017,360.96/19,038.62
  6. Step 6: Final answer
    x = 15,705.83

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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.