Home / 14,005.40-21,011.99-6,108.60

Finding the Fourth Proportional to 14,005.40, 21,011.99 and 6,108.60

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Solution

The fourth proportional to 14,005.40, 21,011.99 and 6,108.60 is: 9,164.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,005.40 : 21,011.99 = 6,108.60 : x
  2. Step 2: Convert to fraction form
    14,005.40/21,011.99 = 6,108.60/x
  3. Step 3: Cross multiply
    14,005.40x = 21,011.99 × 6,108.60
  4. Step 4: Simplify right side
    14,005.40x = 128,353,842.11
  5. Step 5: Solve for x
    x = 128,353,842.11/14,005.40
  6. Step 6: Final answer
    x = 9,164.60

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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.