Home / 8,718.28-13,080.14-2,878.99

Finding the Fourth Proportional to 8,718.28, 13,080.14 and 2,878.99

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Solution

The fourth proportional to 8,718.28, 13,080.14 and 2,878.99 is: 4,319.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.28 : 13,080.14 = 2,878.99 : x
  2. Step 2: Convert to fraction form
    8,718.28/13,080.14 = 2,878.99/x
  3. Step 3: Cross multiply
    8,718.28x = 13,080.14 × 2,878.99
  4. Step 4: Simplify right side
    8,718.28x = 37,657,566.76
  5. Step 5: Solve for x
    x = 37,657,566.76/8,718.28
  6. Step 6: Final answer
    x = 4,319.38

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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.