Home / 42,126.93-63,197.69-12,541.68

Finding the Fourth Proportional to 42,126.93, 63,197.69 and 12,541.68

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Solution

The fourth proportional to 42,126.93, 63,197.69 and 12,541.68 is: 18,814.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,126.93 : 63,197.69 = 12,541.68 : x
  2. Step 2: Convert to fraction form
    42,126.93/63,197.69 = 12,541.68/x
  3. Step 3: Cross multiply
    42,126.93x = 63,197.69 × 12,541.68
  4. Step 4: Simplify right side
    42,126.93x = 792,605,142.01
  5. Step 5: Solve for x
    x = 792,605,142.01/42,126.93
  6. Step 6: Final answer
    x = 18,814.69

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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.