Home / 19,312.04-28,965.66-8,210.44

Finding the Fourth Proportional to 19,312.04, 28,965.66 and 8,210.44

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Solution

The fourth proportional to 19,312.04, 28,965.66 and 8,210.44 is: 12,314.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,312.04 : 28,965.66 = 8,210.44 : x
  2. Step 2: Convert to fraction form
    19,312.04/28,965.66 = 8,210.44/x
  3. Step 3: Cross multiply
    19,312.04x = 28,965.66 × 8,210.44
  4. Step 4: Simplify right side
    19,312.04x = 237,820,813.49
  5. Step 5: Solve for x
    x = 237,820,813.49/19,312.04
  6. Step 6: Final answer
    x = 12,314.64

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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.