Home / 16,965.45-23,412.34-9,411.90

Finding the Fourth Proportional to 16,965.45, 23,412.34 and 9,411.90

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Solution

The fourth proportional to 16,965.45, 23,412.34 and 9,411.90 is: 12,988.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,965.45 : 23,412.34 = 9,411.90 : x
  2. Step 2: Convert to fraction form
    16,965.45/23,412.34 = 9,411.90/x
  3. Step 3: Cross multiply
    16,965.45x = 23,412.34 × 9,411.90
  4. Step 4: Simplify right side
    16,965.45x = 220,354,526.81
  5. Step 5: Solve for x
    x = 220,354,526.81/16,965.45
  6. Step 6: Final answer
    x = 12,988.43

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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.