Home / 13,719.23-18,925.58-8,674.95

Finding the Fourth Proportional to 13,719.23, 18,925.58 and 8,674.95

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Solution

The fourth proportional to 13,719.23, 18,925.58 and 8,674.95 is: 11,967.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.23 : 18,925.58 = 8,674.95 : x
  2. Step 2: Convert to fraction form
    13,719.23/18,925.58 = 8,674.95/x
  3. Step 3: Cross multiply
    13,719.23x = 18,925.58 × 8,674.95
  4. Step 4: Simplify right side
    13,719.23x = 164,178,460.22
  5. Step 5: Solve for x
    x = 164,178,460.22/13,719.23
  6. Step 6: Final answer
    x = 11,967.03

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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.