Home / 12,808.48-19,214.88-4,043.20

Finding the Fourth Proportional to 12,808.48, 19,214.88 and 4,043.20

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Solution

The fourth proportional to 12,808.48, 19,214.88 and 4,043.20 is: 6,065.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,808.48 : 19,214.88 = 4,043.20 : x
  2. Step 2: Convert to fraction form
    12,808.48/19,214.88 = 4,043.20/x
  3. Step 3: Cross multiply
    12,808.48x = 19,214.88 × 4,043.20
  4. Step 4: Simplify right side
    12,808.48x = 77,689,602.82
  5. Step 5: Solve for x
    x = 77,689,602.82/12,808.48
  6. Step 6: Final answer
    x = 6,065.48

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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.