Home / 19,080.47-28,620.20-8,547.63

Finding the Fourth Proportional to 19,080.47, 28,620.20 and 8,547.63

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Solution

The fourth proportional to 19,080.47, 28,620.20 and 8,547.63 is: 12,821.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,080.47 : 28,620.20 = 8,547.63 : x
  2. Step 2: Convert to fraction form
    19,080.47/28,620.20 = 8,547.63/x
  3. Step 3: Cross multiply
    19,080.47x = 28,620.20 × 8,547.63
  4. Step 4: Simplify right side
    19,080.47x = 244,634,837.39
  5. Step 5: Solve for x
    x = 244,634,837.39/19,080.47
  6. Step 6: Final answer
    x = 12,821.22

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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.