Home / 14,260.61-19,689.32-8,885.20

Finding the Fourth Proportional to 14,260.61, 19,689.32 and 8,885.20

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Solution

The fourth proportional to 14,260.61, 19,689.32 and 8,885.20 is: 12,267.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,260.61 : 19,689.32 = 8,885.20 : x
  2. Step 2: Convert to fraction form
    14,260.61/19,689.32 = 8,885.20/x
  3. Step 3: Cross multiply
    14,260.61x = 19,689.32 × 8,885.20
  4. Step 4: Simplify right side
    14,260.61x = 174,943,563.57
  5. Step 5: Solve for x
    x = 174,943,563.57/14,260.61
  6. Step 6: Final answer
    x = 12,267.61

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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.