Home / 14,008.89-21,000.67-5,117.95

Finding the Fourth Proportional to 14,008.89, 21,000.67 and 5,117.95

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Solution

The fourth proportional to 14,008.89, 21,000.67 and 5,117.95 is: 7,672.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008.89 : 21,000.67 = 5,117.95 : x
  2. Step 2: Convert to fraction form
    14,008.89/21,000.67 = 5,117.95/x
  3. Step 3: Cross multiply
    14,008.89x = 21,000.67 × 5,117.95
  4. Step 4: Simplify right side
    14,008.89x = 107,480,303.89
  5. Step 5: Solve for x
    x = 107,480,303.89/14,008.89
  6. Step 6: Final answer
    x = 7,672.29

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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.