Home / 7,347.21-10,146.30-6,278.67

Finding the Fourth Proportional to 7,347.21, 10,146.30 and 6,278.67

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Solution

The fourth proportional to 7,347.21, 10,146.30 and 6,278.67 is: 8,670.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,347.21 : 10,146.30 = 6,278.67 : x
  2. Step 2: Convert to fraction form
    7,347.21/10,146.30 = 6,278.67/x
  3. Step 3: Cross multiply
    7,347.21x = 10,146.30 × 6,278.67
  4. Step 4: Simplify right side
    7,347.21x = 63,705,269.42
  5. Step 5: Solve for x
    x = 63,705,269.42/7,347.21
  6. Step 6: Final answer
    x = 8,670.67

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Double scale
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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.