Home / 13,217.80-19,827.96-4,455.40

Finding the Fourth Proportional to 13,217.80, 19,827.96 and 4,455.40

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Solution

The fourth proportional to 13,217.80, 19,827.96 and 4,455.40 is: 6,683.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.80 : 19,827.96 = 4,455.40 : x
  2. Step 2: Convert to fraction form
    13,217.80/19,827.96 = 4,455.40/x
  3. Step 3: Cross multiply
    13,217.80x = 19,827.96 × 4,455.40
  4. Step 4: Simplify right side
    13,217.80x = 88,341,492.98
  5. Step 5: Solve for x
    x = 88,341,492.98/13,217.80
  6. Step 6: Final answer
    x = 6,683.52

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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.