Home / 10,122.23-15,193.05-4,931.75

Finding the Fourth Proportional to 10,122.23, 15,193.05 and 4,931.75

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Solution

The fourth proportional to 10,122.23, 15,193.05 and 4,931.75 is: 7,402.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,122.23 : 15,193.05 = 4,931.75 : x
  2. Step 2: Convert to fraction form
    10,122.23/15,193.05 = 4,931.75/x
  3. Step 3: Cross multiply
    10,122.23x = 15,193.05 × 4,931.75
  4. Step 4: Simplify right side
    10,122.23x = 74,928,324.34
  5. Step 5: Solve for x
    x = 74,928,324.34/10,122.23
  6. Step 6: Final answer
    x = 7,402.35

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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.