Home / 19,237.60-28,834.80-8,142.40

Finding the Fourth Proportional to 19,237.60, 28,834.80 and 8,142.40

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Solution

The fourth proportional to 19,237.60, 28,834.80 and 8,142.40 is: 12,204.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,237.60 : 28,834.80 = 8,142.40 : x
  2. Step 2: Convert to fraction form
    19,237.60/28,834.80 = 8,142.40/x
  3. Step 3: Cross multiply
    19,237.60x = 28,834.80 × 8,142.40
  4. Step 4: Simplify right side
    19,237.60x = 234,784,475.52
  5. Step 5: Solve for x
    x = 234,784,475.52/19,237.60
  6. Step 6: Final answer
    x = 12,204.46

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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.