Home / 12,319.04-18,492.38-4,928.65

Finding the Fourth Proportional to 12,319.04, 18,492.38 and 4,928.65

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Solution

The fourth proportional to 12,319.04, 18,492.38 and 4,928.65 is: 7,398.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,319.04 : 18,492.38 = 4,928.65 : x
  2. Step 2: Convert to fraction form
    12,319.04/18,492.38 = 4,928.65/x
  3. Step 3: Cross multiply
    12,319.04x = 18,492.38 × 4,928.65
  4. Step 4: Simplify right side
    12,319.04x = 91,142,485.64
  5. Step 5: Solve for x
    x = 91,142,485.64/12,319.04
  6. Step 6: Final answer
    x = 7,398.51

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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.