Home / 43,678.16-65,505.90-12,506.12

Finding the Fourth Proportional to 43,678.16, 65,505.90 and 12,506.12

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Solution

The fourth proportional to 43,678.16, 65,505.90 and 12,506.12 is: 18,755.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,678.16 : 65,505.90 = 12,506.12 : x
  2. Step 2: Convert to fraction form
    43,678.16/65,505.90 = 12,506.12/x
  3. Step 3: Cross multiply
    43,678.16x = 65,505.90 × 12,506.12
  4. Step 4: Simplify right side
    43,678.16x = 819,224,646.11
  5. Step 5: Solve for x
    x = 819,224,646.11/43,678.16
  6. Step 6: Final answer
    x = 18,755.93

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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.