Home / 10,307.75-15,427.40-9,385.43

Finding the Fourth Proportional to 10,307.75, 15,427.40 and 9,385.43

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Solution

The fourth proportional to 10,307.75, 15,427.40 and 9,385.43 is: 14,046.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,307.75 : 15,427.40 = 9,385.43 : x
  2. Step 2: Convert to fraction form
    10,307.75/15,427.40 = 9,385.43/x
  3. Step 3: Cross multiply
    10,307.75x = 15,427.40 × 9,385.43
  4. Step 4: Simplify right side
    10,307.75x = 144,792,658.72
  5. Step 5: Solve for x
    x = 144,792,658.72/10,307.75
  6. Step 6: Final answer
    x = 14,046.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.