Home / 18,985.05-28,476.72-6,506.19

Finding the Fourth Proportional to 18,985.05, 28,476.72 and 6,506.19

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Solution

The fourth proportional to 18,985.05, 28,476.72 and 6,506.19 is: 9,758.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985.05 : 28,476.72 = 6,506.19 : x
  2. Step 2: Convert to fraction form
    18,985.05/28,476.72 = 6,506.19/x
  3. Step 3: Cross multiply
    18,985.05x = 28,476.72 × 6,506.19
  4. Step 4: Simplify right side
    18,985.05x = 185,274,950.90
  5. Step 5: Solve for x
    x = 185,274,950.90/18,985.05
  6. Step 6: Final answer
    x = 9,758.99

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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.