Home / 11,570.40-17,342.40-4,902.72

Finding the Fourth Proportional to 11,570.40, 17,342.40 and 4,902.72

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Solution

The fourth proportional to 11,570.40, 17,342.40 and 4,902.72 is: 7,348.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,570.40 : 17,342.40 = 4,902.72 : x
  2. Step 2: Convert to fraction form
    11,570.40/17,342.40 = 4,902.72/x
  3. Step 3: Cross multiply
    11,570.40x = 17,342.40 × 4,902.72
  4. Step 4: Simplify right side
    11,570.40x = 85,024,931.33
  5. Step 5: Solve for x
    x = 85,024,931.33/11,570.40
  6. Step 6: Final answer
    x = 7,348.49

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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.