Home / 11,322.29-15,621.59-7,077.67

Finding the Fourth Proportional to 11,322.29, 15,621.59 and 7,077.67

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Solution

The fourth proportional to 11,322.29, 15,621.59 and 7,077.67 is: 9,765.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,322.29 : 15,621.59 = 7,077.67 : x
  2. Step 2: Convert to fraction form
    11,322.29/15,621.59 = 7,077.67/x
  3. Step 3: Cross multiply
    11,322.29x = 15,621.59 × 7,077.67
  4. Step 4: Simplify right side
    11,322.29x = 110,564,437.54
  5. Step 5: Solve for x
    x = 110,564,437.54/11,322.29
  6. Step 6: Final answer
    x = 9,765.21

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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.