Home / 43,605.91-65,397.16-12,008.45

Finding the Fourth Proportional to 43,605.91, 65,397.16 and 12,008.45

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Solution

The fourth proportional to 43,605.91, 65,397.16 and 12,008.45 is: 18,009.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,605.91 : 65,397.16 = 12,008.45 : x
  2. Step 2: Convert to fraction form
    43,605.91/65,397.16 = 12,008.45/x
  3. Step 3: Cross multiply
    43,605.91x = 65,397.16 × 12,008.45
  4. Step 4: Simplify right side
    43,605.91x = 785,318,465.96
  5. Step 5: Solve for x
    x = 785,318,465.96/43,605.91
  6. Step 6: Final answer
    x = 18,009.45

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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.