Home / 8,423.60-11,624.31-4,646.72

Finding the Fourth Proportional to 8,423.60, 11,624.31 and 4,646.72

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Solution

The fourth proportional to 8,423.60, 11,624.31 and 4,646.72 is: 6,412.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.60 : 11,624.31 = 4,646.72 : x
  2. Step 2: Convert to fraction form
    8,423.60/11,624.31 = 4,646.72/x
  3. Step 3: Cross multiply
    8,423.60x = 11,624.31 × 4,646.72
  4. Step 4: Simplify right side
    8,423.60x = 54,014,942.82
  5. Step 5: Solve for x
    x = 54,014,942.82/8,423.60
  6. Step 6: Final answer
    x = 6,412.34

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Half scale
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Double scale
Find fourth proportional to 8,424.60, 11,625.69 and 4,647.72
Similar ratio
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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.