Home / 11,448.34-15,800.30-8,271.91

Finding the Fourth Proportional to 11,448.34, 15,800.30 and 8,271.91

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Solution

The fourth proportional to 11,448.34, 15,800.30 and 8,271.91 is: 11,416.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,448.34 : 15,800.30 = 8,271.91 : x
  2. Step 2: Convert to fraction form
    11,448.34/15,800.30 = 8,271.91/x
  3. Step 3: Cross multiply
    11,448.34x = 15,800.30 × 8,271.91
  4. Step 4: Simplify right side
    11,448.34x = 130,698,659.57
  5. Step 5: Solve for x
    x = 130,698,659.57/11,448.34
  6. Step 6: Final answer
    x = 11,416.39

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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.