Home / 13,038.62-19,561.58-4,279.69

Finding the Fourth Proportional to 13,038.62, 19,561.58 and 4,279.69

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Solution

The fourth proportional to 13,038.62, 19,561.58 and 4,279.69 is: 6,420.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,038.62 : 19,561.58 = 4,279.69 : x
  2. Step 2: Convert to fraction form
    13,038.62/19,561.58 = 4,279.69/x
  3. Step 3: Cross multiply
    13,038.62x = 19,561.58 × 4,279.69
  4. Step 4: Simplify right side
    13,038.62x = 83,717,395.34
  5. Step 5: Solve for x
    x = 83,717,395.34/13,038.62
  6. Step 6: Final answer
    x = 6,420.72

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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.