Home / 13,188.28-19,783.74-4,870.48

Finding the Fourth Proportional to 13,188.28, 19,783.74 and 4,870.48

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Solution

The fourth proportional to 13,188.28, 19,783.74 and 4,870.48 is: 7,306.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188.28 : 19,783.74 = 4,870.48 : x
  2. Step 2: Convert to fraction form
    13,188.28/19,783.74 = 4,870.48/x
  3. Step 3: Cross multiply
    13,188.28x = 19,783.74 × 4,870.48
  4. Step 4: Simplify right side
    13,188.28x = 96,356,310.00
  5. Step 5: Solve for x
    x = 96,356,310.00/13,188.28
  6. Step 6: Final answer
    x = 7,306.21

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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.