Home / 13,190.48-19,785.87-4,870.77

Finding the Fourth Proportional to 13,190.48, 19,785.87 and 4,870.77

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Solution

The fourth proportional to 13,190.48, 19,785.87 and 4,870.77 is: 7,306.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.48 : 19,785.87 = 4,870.77 : x
  2. Step 2: Convert to fraction form
    13,190.48/19,785.87 = 4,870.77/x
  3. Step 3: Cross multiply
    13,190.48x = 19,785.87 × 4,870.77
  4. Step 4: Simplify right side
    13,190.48x = 96,372,347.82
  5. Step 5: Solve for x
    x = 96,372,347.82/13,190.48
  6. Step 6: Final answer
    x = 7,306.21

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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.