Home / 12,883.58-19,312.17-5,483.28

Finding the Fourth Proportional to 12,883.58, 19,312.17 and 5,483.28

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Solution

The fourth proportional to 12,883.58, 19,312.17 and 5,483.28 is: 8,219.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,883.58 : 19,312.17 = 5,483.28 : x
  2. Step 2: Convert to fraction form
    12,883.58/19,312.17 = 5,483.28/x
  3. Step 3: Cross multiply
    12,883.58x = 19,312.17 × 5,483.28
  4. Step 4: Simplify right side
    12,883.58x = 105,894,035.52
  5. Step 5: Solve for x
    x = 105,894,035.52/12,883.58
  6. Step 6: Final answer
    x = 8,219.30

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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.