Home / 15,551.91-21,461.00-8,745.74

Finding the Fourth Proportional to 15,551.91, 21,461.00 and 8,745.74

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Solution

The fourth proportional to 15,551.91, 21,461.00 and 8,745.74 is: 12,068.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,551.91 : 21,461.00 = 8,745.74 : x
  2. Step 2: Convert to fraction form
    15,551.91/21,461.00 = 8,745.74/x
  3. Step 3: Cross multiply
    15,551.91x = 21,461.00 × 8,745.74
  4. Step 4: Simplify right side
    15,551.91x = 187,692,175.11
  5. Step 5: Solve for x
    x = 187,692,175.11/15,551.91
  6. Step 6: Final answer
    x = 12,068.75

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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.