Home / 15,586.47-21,508.45-8,511.52

Finding the Fourth Proportional to 15,586.47, 21,508.45 and 8,511.52

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Solution

The fourth proportional to 15,586.47, 21,508.45 and 8,511.52 is: 11,745.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,586.47 : 21,508.45 = 8,511.52 : x
  2. Step 2: Convert to fraction form
    15,586.47/21,508.45 = 8,511.52/x
  3. Step 3: Cross multiply
    15,586.47x = 21,508.45 × 8,511.52
  4. Step 4: Simplify right side
    15,586.47x = 183,069,602.34
  5. Step 5: Solve for x
    x = 183,069,602.34/15,586.47
  6. Step 6: Final answer
    x = 11,745.42

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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.