Home / 10,941.40-16,421.70-9,386.20

Finding the Fourth Proportional to 10,941.40, 16,421.70 and 9,386.20

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Solution

The fourth proportional to 10,941.40, 16,421.70 and 9,386.20 is: 14,087.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,941.40 : 16,421.70 = 9,386.20 : x
  2. Step 2: Convert to fraction form
    10,941.40/16,421.70 = 9,386.20/x
  3. Step 3: Cross multiply
    10,941.40x = 16,421.70 × 9,386.20
  4. Step 4: Simplify right side
    10,941.40x = 154,137,360.54
  5. Step 5: Solve for x
    x = 154,137,360.54/10,941.40
  6. Step 6: Final answer
    x = 14,087.54

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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.