Home / 14,002.28-20,981.54-11,913.69

Finding the Fourth Proportional to 14,002.28, 20,981.54 and 11,913.69

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Solution

The fourth proportional to 14,002.28, 20,981.54 and 11,913.69 is: 17,851.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,002.28 : 20,981.54 = 11,913.69 : x
  2. Step 2: Convert to fraction form
    14,002.28/20,981.54 = 11,913.69/x
  3. Step 3: Cross multiply
    14,002.28x = 20,981.54 × 11,913.69
  4. Step 4: Simplify right side
    14,002.28x = 249,967,548.39
  5. Step 5: Solve for x
    x = 249,967,548.39/14,002.28
  6. Step 6: Final answer
    x = 17,851.92

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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.