Home / 19,217.40-28,810.10-8,132.60

Finding the Fourth Proportional to 19,217.40, 28,810.10 and 8,132.60

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Solution

The fourth proportional to 19,217.40, 28,810.10 and 8,132.60 is: 12,192.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,217.40 : 28,810.10 = 8,132.60 : x
  2. Step 2: Convert to fraction form
    19,217.40/28,810.10 = 8,132.60/x
  3. Step 3: Cross multiply
    19,217.40x = 28,810.10 × 8,132.60
  4. Step 4: Simplify right side
    19,217.40x = 234,301,019.26
  5. Step 5: Solve for x
    x = 234,301,019.26/19,217.40
  6. Step 6: Final answer
    x = 12,192.13

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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.