Home / 19,012.72-28,503.08-8,621.68

Finding the Fourth Proportional to 19,012.72, 28,503.08 and 8,621.68

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Solution

The fourth proportional to 19,012.72, 28,503.08 and 8,621.68 is: 12,925.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,012.72 : 28,503.08 = 8,621.68 : x
  2. Step 2: Convert to fraction form
    19,012.72/28,503.08 = 8,621.68/x
  3. Step 3: Cross multiply
    19,012.72x = 28,503.08 × 8,621.68
  4. Step 4: Simplify right side
    19,012.72x = 245,744,434.77
  5. Step 5: Solve for x
    x = 245,744,434.77/19,012.72
  6. Step 6: Final answer
    x = 12,925.26

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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.