Home / 15,745.19-21,730.34-9,030.67

Finding the Fourth Proportional to 15,745.19, 21,730.34 and 9,030.67

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Solution

The fourth proportional to 15,745.19, 21,730.34 and 9,030.67 is: 12,463.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,745.19 : 21,730.34 = 9,030.67 : x
  2. Step 2: Convert to fraction form
    15,745.19/21,730.34 = 9,030.67/x
  3. Step 3: Cross multiply
    15,745.19x = 21,730.34 × 9,030.67
  4. Step 4: Simplify right side
    15,745.19x = 196,239,529.53
  5. Step 5: Solve for x
    x = 196,239,529.53/15,745.19
  6. Step 6: Final answer
    x = 12,463.46

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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.