Home / 7,856.09-11,776.28-4,347.67

Finding the Fourth Proportional to 7,856.09, 11,776.28 and 4,347.67

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Solution

The fourth proportional to 7,856.09, 11,776.28 and 4,347.67 is: 6,517.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,856.09 : 11,776.28 = 4,347.67 : x
  2. Step 2: Convert to fraction form
    7,856.09/11,776.28 = 4,347.67/x
  3. Step 3: Cross multiply
    7,856.09x = 11,776.28 × 4,347.67
  4. Step 4: Simplify right side
    7,856.09x = 51,199,357.53
  5. Step 5: Solve for x
    x = 51,199,357.53/7,856.09
  6. Step 6: Final answer
    x = 6,517.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.