Home / 14,339.85-21,482.44-8,402.15

Finding the Fourth Proportional to 14,339.85, 21,482.44 and 8,402.15

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Solution

The fourth proportional to 14,339.85, 21,482.44 and 8,402.15 is: 12,587.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,339.85 : 21,482.44 = 8,402.15 : x
  2. Step 2: Convert to fraction form
    14,339.85/21,482.44 = 8,402.15/x
  3. Step 3: Cross multiply
    14,339.85x = 21,482.44 × 8,402.15
  4. Step 4: Simplify right side
    14,339.85x = 180,498,554.83
  5. Step 5: Solve for x
    x = 180,498,554.83/14,339.85
  6. Step 6: Final answer
    x = 12,587.20

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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.