Home / 19,884.16-29,768.64-12,937.60

Finding the Fourth Proportional to 19,884.16, 29,768.64 and 12,937.60

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Solution

The fourth proportional to 19,884.16, 29,768.64 and 12,937.60 is: 19,368.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,884.16 : 29,768.64 = 12,937.60 : x
  2. Step 2: Convert to fraction form
    19,884.16/29,768.64 = 12,937.60/x
  3. Step 3: Cross multiply
    19,884.16x = 29,768.64 × 12,937.60
  4. Step 4: Simplify right side
    19,884.16x = 385,134,756.86
  5. Step 5: Solve for x
    x = 385,134,756.86/19,884.16
  6. Step 6: Final answer
    x = 19,368.92

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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.