Home / 13,307.88-18,362.34-9,114.60

Finding the Fourth Proportional to 13,307.88, 18,362.34 and 9,114.60

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Solution

The fourth proportional to 13,307.88, 18,362.34 and 9,114.60 is: 12,576.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.88 : 18,362.34 = 9,114.60 : x
  2. Step 2: Convert to fraction form
    13,307.88/18,362.34 = 9,114.60/x
  3. Step 3: Cross multiply
    13,307.88x = 18,362.34 × 9,114.60
  4. Step 4: Simplify right side
    13,307.88x = 167,365,384.16
  5. Step 5: Solve for x
    x = 167,365,384.16/13,307.88
  6. Step 6: Final answer
    x = 12,576.41

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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.