Home / 12,487.40-17,232.45-6,822.67

Finding the Fourth Proportional to 12,487.40, 17,232.45 and 6,822.67

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Solution

The fourth proportional to 12,487.40, 17,232.45 and 6,822.67 is: 9,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487.40 : 17,232.45 = 6,822.67 : x
  2. Step 2: Convert to fraction form
    12,487.40/17,232.45 = 6,822.67/x
  3. Step 3: Cross multiply
    12,487.40x = 17,232.45 × 6,822.67
  4. Step 4: Simplify right side
    12,487.40x = 117,571,319.64
  5. Step 5: Solve for x
    x = 117,571,319.64/12,487.40
  6. Step 6: Final answer
    x = 9,415.20

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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.