Home / 18,948.90-28,423.89-7,263.03

Finding the Fourth Proportional to 18,948.90, 28,423.89 and 7,263.03

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Solution

The fourth proportional to 18,948.90, 28,423.89 and 7,263.03 is: 10,894.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,948.90 : 28,423.89 = 7,263.03 : x
  2. Step 2: Convert to fraction form
    18,948.90/28,423.89 = 7,263.03/x
  3. Step 3: Cross multiply
    18,948.90x = 28,423.89 × 7,263.03
  4. Step 4: Simplify right side
    18,948.90x = 206,443,565.79
  5. Step 5: Solve for x
    x = 206,443,565.79/18,948.90
  6. Step 6: Final answer
    x = 10,894.75

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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.