Home / 15,475.39-21,355.74-9,102.67

Finding the Fourth Proportional to 15,475.39, 21,355.74 and 9,102.67

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Solution

The fourth proportional to 15,475.39, 21,355.74 and 9,102.67 is: 12,561.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,475.39 : 21,355.74 = 9,102.67 : x
  2. Step 2: Convert to fraction form
    15,475.39/21,355.74 = 9,102.67/x
  3. Step 3: Cross multiply
    15,475.39x = 21,355.74 × 9,102.67
  4. Step 4: Simplify right side
    15,475.39x = 194,394,200.44
  5. Step 5: Solve for x
    x = 194,394,200.44/15,475.39
  6. Step 6: Final answer
    x = 12,561.51

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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.