Home / 14,207.40-21,287.52-8,643.84

Finding the Fourth Proportional to 14,207.40, 21,287.52 and 8,643.84

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Solution

The fourth proportional to 14,207.40, 21,287.52 and 8,643.84 is: 12,951.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,207.40 : 21,287.52 = 8,643.84 : x
  2. Step 2: Convert to fraction form
    14,207.40/21,287.52 = 8,643.84/x
  3. Step 3: Cross multiply
    14,207.40x = 21,287.52 × 8,643.84
  4. Step 4: Simplify right side
    14,207.40x = 184,005,916.88
  5. Step 5: Solve for x
    x = 184,005,916.88/14,207.40
  6. Step 6: Final answer
    x = 12,951.41

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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.