Home / 12,281.10-18,404.21-9,459.27

Finding the Fourth Proportional to 12,281.10, 18,404.21 and 9,459.27

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Solution

The fourth proportional to 12,281.10, 18,404.21 and 9,459.27 is: 14,175.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281.10 : 18,404.21 = 9,459.27 : x
  2. Step 2: Convert to fraction form
    12,281.10/18,404.21 = 9,459.27/x
  3. Step 3: Cross multiply
    12,281.10x = 18,404.21 × 9,459.27
  4. Step 4: Simplify right side
    12,281.10x = 174,090,299.51
  5. Step 5: Solve for x
    x = 174,090,299.51/12,281.10
  6. Step 6: Final answer
    x = 14,175.46

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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.