Home / 14,981.76-20,672.64-9,394.56

Finding the Fourth Proportional to 14,981.76, 20,672.64 and 9,394.56

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Solution

The fourth proportional to 14,981.76, 20,672.64 and 9,394.56 is: 12,963.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,981.76 : 20,672.64 = 9,394.56 : x
  2. Step 2: Convert to fraction form
    14,981.76/20,672.64 = 9,394.56/x
  3. Step 3: Cross multiply
    14,981.76x = 20,672.64 × 9,394.56
  4. Step 4: Simplify right side
    14,981.76x = 194,210,356.84
  5. Step 5: Solve for x
    x = 194,210,356.84/14,981.76
  6. Step 6: Final answer
    x = 12,963.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.