Home / 10,223.34-14,102.40-6,439.98

Finding the Fourth Proportional to 10,223.34, 14,102.40 and 6,439.98

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Solution

The fourth proportional to 10,223.34, 14,102.40 and 6,439.98 is: 8,883.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,223.34 : 14,102.40 = 6,439.98 : x
  2. Step 2: Convert to fraction form
    10,223.34/14,102.40 = 6,439.98/x
  3. Step 3: Cross multiply
    10,223.34x = 14,102.40 × 6,439.98
  4. Step 4: Simplify right side
    10,223.34x = 90,819,173.95
  5. Step 5: Solve for x
    x = 90,819,173.95/10,223.34
  6. Step 6: Final answer
    x = 8,883.51

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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.