Home / 8,447.18-11,656.49-4,670.39

Finding the Fourth Proportional to 8,447.18, 11,656.49 and 4,670.39

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Solution

The fourth proportional to 8,447.18, 11,656.49 and 4,670.39 is: 6,444.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.18 : 11,656.49 = 4,670.39 : x
  2. Step 2: Convert to fraction form
    8,447.18/11,656.49 = 4,670.39/x
  3. Step 3: Cross multiply
    8,447.18x = 11,656.49 × 4,670.39
  4. Step 4: Simplify right side
    8,447.18x = 54,440,317.51
  5. Step 5: Solve for x
    x = 54,440,317.51/8,447.18
  6. Step 6: Final answer
    x = 6,444.79

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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.