Home / 14,002.80-21,000.15-5,117.10

Finding the Fourth Proportional to 14,002.80, 21,000.15 and 5,117.10

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Solution

The fourth proportional to 14,002.80, 21,000.15 and 5,117.10 is: 7,674.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,002.80 : 21,000.15 = 5,117.10 : x
  2. Step 2: Convert to fraction form
    14,002.80/21,000.15 = 5,117.10/x
  3. Step 3: Cross multiply
    14,002.80x = 21,000.15 × 5,117.10
  4. Step 4: Simplify right side
    14,002.80x = 107,459,867.57
  5. Step 5: Solve for x
    x = 107,459,867.57/14,002.80
  6. Step 6: Final answer
    x = 7,674.17

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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.