Home / 15,173.04-20,938.32-8,886.40

Finding the Fourth Proportional to 15,173.04, 20,938.32 and 8,886.40

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Solution

The fourth proportional to 15,173.04, 20,938.32 and 8,886.40 is: 12,262.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,173.04 : 20,938.32 = 8,886.40 : x
  2. Step 2: Convert to fraction form
    15,173.04/20,938.32 = 8,886.40/x
  3. Step 3: Cross multiply
    15,173.04x = 20,938.32 × 8,886.40
  4. Step 4: Simplify right side
    15,173.04x = 186,066,286.85
  5. Step 5: Solve for x
    x = 186,066,286.85/15,173.04
  6. Step 6: Final answer
    x = 12,262.95

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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.