Home / 15,585.43-21,508.05-8,511.97

Finding the Fourth Proportional to 15,585.43, 21,508.05 and 8,511.97

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Solution

The fourth proportional to 15,585.43, 21,508.05 and 8,511.97 is: 11,746.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,585.43 : 21,508.05 = 8,511.97 : x
  2. Step 2: Convert to fraction form
    15,585.43/21,508.05 = 8,511.97/x
  3. Step 3: Cross multiply
    15,585.43x = 21,508.05 × 8,511.97
  4. Step 4: Simplify right side
    15,585.43x = 183,075,876.36
  5. Step 5: Solve for x
    x = 183,075,876.36/15,585.43
  6. Step 6: Final answer
    x = 11,746.60

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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.