Home / 14,768.79-20,378.95-9,470.78

Finding the Fourth Proportional to 14,768.79, 20,378.95 and 9,470.78

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Solution

The fourth proportional to 14,768.79, 20,378.95 and 9,470.78 is: 13,068.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,768.79 : 20,378.95 = 9,470.78 : x
  2. Step 2: Convert to fraction form
    14,768.79/20,378.95 = 9,470.78/x
  3. Step 3: Cross multiply
    14,768.79x = 20,378.95 × 9,470.78
  4. Step 4: Simplify right side
    14,768.79x = 193,004,552.08
  5. Step 5: Solve for x
    x = 193,004,552.08/14,768.79
  6. Step 6: Final answer
    x = 13,068.41

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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.