Home / 13,459.77-18,582.21-8,998.29

Finding the Fourth Proportional to 13,459.77, 18,582.21 and 8,998.29

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Solution

The fourth proportional to 13,459.77, 18,582.21 and 8,998.29 is: 12,422.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459.77 : 18,582.21 = 8,998.29 : x
  2. Step 2: Convert to fraction form
    13,459.77/18,582.21 = 8,998.29/x
  3. Step 3: Cross multiply
    13,459.77x = 18,582.21 × 8,998.29
  4. Step 4: Simplify right side
    13,459.77x = 167,208,114.42
  5. Step 5: Solve for x
    x = 167,208,114.42/13,459.77
  6. Step 6: Final answer
    x = 12,422.81

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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.