Home / 13,263.40-19,904.70-5,477.80

Finding the Fourth Proportional to 13,263.40, 19,904.70 and 5,477.80

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Solution

The fourth proportional to 13,263.40, 19,904.70 and 5,477.80 is: 8,220.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,263.40 : 19,904.70 = 5,477.80 : x
  2. Step 2: Convert to fraction form
    13,263.40/19,904.70 = 5,477.80/x
  3. Step 3: Cross multiply
    13,263.40x = 19,904.70 × 5,477.80
  4. Step 4: Simplify right side
    13,263.40x = 109,033,965.66
  5. Step 5: Solve for x
    x = 109,033,965.66/13,263.40
  6. Step 6: Final answer
    x = 8,220.66

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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.