Home / 7,788.76-10,748.16-4,431.11

Finding the Fourth Proportional to 7,788.76, 10,748.16 and 4,431.11

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Solution

The fourth proportional to 7,788.76, 10,748.16 and 4,431.11 is: 6,114.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.76 : 10,748.16 = 4,431.11 : x
  2. Step 2: Convert to fraction form
    7,788.76/10,748.16 = 4,431.11/x
  3. Step 3: Cross multiply
    7,788.76x = 10,748.16 × 4,431.11
  4. Step 4: Simplify right side
    7,788.76x = 47,626,225.52
  5. Step 5: Solve for x
    x = 47,626,225.52/7,788.76
  6. Step 6: Final answer
    x = 6,114.74

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Half scale
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Double scale
Find fourth proportional to 7,789.76, 10,749.54 and 4,432.11
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.