Home / 18,880.84-28,278.18-9,027.16

Finding the Fourth Proportional to 18,880.84, 28,278.18 and 9,027.16

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Solution

The fourth proportional to 18,880.84, 28,278.18 and 9,027.16 is: 13,520.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,880.84 : 28,278.18 = 9,027.16 : x
  2. Step 2: Convert to fraction form
    18,880.84/28,278.18 = 9,027.16/x
  3. Step 3: Cross multiply
    18,880.84x = 28,278.18 × 9,027.16
  4. Step 4: Simplify right side
    18,880.84x = 255,271,655.37
  5. Step 5: Solve for x
    x = 255,271,655.37/18,880.84
  6. Step 6: Final answer
    x = 13,520.14

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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.