Home / 13,148.22-19,715.03-4,378.35

Finding the Fourth Proportional to 13,148.22, 19,715.03 and 4,378.35

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Solution

The fourth proportional to 13,148.22, 19,715.03 and 4,378.35 is: 6,565.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148.22 : 19,715.03 = 4,378.35 : x
  2. Step 2: Convert to fraction form
    13,148.22/19,715.03 = 4,378.35/x
  3. Step 3: Cross multiply
    13,148.22x = 19,715.03 × 4,378.35
  4. Step 4: Simplify right side
    13,148.22x = 86,319,213.97
  5. Step 5: Solve for x
    x = 86,319,213.97/13,148.22
  6. Step 6: Final answer
    x = 6,565.09

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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.