Home / 13,276.84-18,314.40-8,300.20

Finding the Fourth Proportional to 13,276.84, 18,314.40 and 8,300.20

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Solution

The fourth proportional to 13,276.84, 18,314.40 and 8,300.20 is: 11,449.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.84 : 18,314.40 = 8,300.20 : x
  2. Step 2: Convert to fraction form
    13,276.84/18,314.40 = 8,300.20/x
  3. Step 3: Cross multiply
    13,276.84x = 18,314.40 × 8,300.20
  4. Step 4: Simplify right side
    13,276.84x = 152,013,182.88
  5. Step 5: Solve for x
    x = 152,013,182.88/13,276.84
  6. Step 6: Final answer
    x = 11,449.50

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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.