Home / 18,948.61-28,423.67-7,101.15

Finding the Fourth Proportional to 18,948.61, 28,423.67 and 7,101.15

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Solution

The fourth proportional to 18,948.61, 28,423.67 and 7,101.15 is: 10,652.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,948.61 : 28,423.67 = 7,101.15 : x
  2. Step 2: Convert to fraction form
    18,948.61/28,423.67 = 7,101.15/x
  3. Step 3: Cross multiply
    18,948.61x = 28,423.67 × 7,101.15
  4. Step 4: Simplify right side
    18,948.61x = 201,840,744.22
  5. Step 5: Solve for x
    x = 201,840,744.22/18,948.61
  6. Step 6: Final answer
    x = 10,652.01

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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.