Home / 18,951.85-28,430.61-6,124.74

Finding the Fourth Proportional to 18,951.85, 28,430.61 and 6,124.74

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Solution

The fourth proportional to 18,951.85, 28,430.61 and 6,124.74 is: 9,188.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,951.85 : 28,430.61 = 6,124.74 : x
  2. Step 2: Convert to fraction form
    18,951.85/28,430.61 = 6,124.74/x
  3. Step 3: Cross multiply
    18,951.85x = 28,430.61 × 6,124.74
  4. Step 4: Simplify right side
    18,951.85x = 174,130,094.29
  5. Step 5: Solve for x
    x = 174,130,094.29/18,951.85
  6. Step 6: Final answer
    x = 9,188.03

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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.