Home / 18,865.57-28,298.33-5,014.57

Finding the Fourth Proportional to 18,865.57, 28,298.33 and 5,014.57

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Solution

The fourth proportional to 18,865.57, 28,298.33 and 5,014.57 is: 7,521.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,865.57 : 28,298.33 = 5,014.57 : x
  2. Step 2: Convert to fraction form
    18,865.57/28,298.33 = 5,014.57/x
  3. Step 3: Cross multiply
    18,865.57x = 28,298.33 × 5,014.57
  4. Step 4: Simplify right side
    18,865.57x = 141,903,931.60
  5. Step 5: Solve for x
    x = 141,903,931.60/18,865.57
  6. Step 6: Final answer
    x = 7,521.85

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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.