Home / 11,483.85-15,848.63-6,448.40

Finding the Fourth Proportional to 11,483.85, 15,848.63 and 6,448.40

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Solution

The fourth proportional to 11,483.85, 15,848.63 and 6,448.40 is: 8,899.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,483.85 : 15,848.63 = 6,448.40 : x
  2. Step 2: Convert to fraction form
    11,483.85/15,848.63 = 6,448.40/x
  3. Step 3: Cross multiply
    11,483.85x = 15,848.63 × 6,448.40
  4. Step 4: Simplify right side
    11,483.85x = 102,198,337.25
  5. Step 5: Solve for x
    x = 102,198,337.25/11,483.85
  6. Step 6: Final answer
    x = 8,899.31

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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.