Home / 13,802.04-19,047.40-7,834.28

Finding the Fourth Proportional to 13,802.04, 19,047.40 and 7,834.28

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Solution

The fourth proportional to 13,802.04, 19,047.40 and 7,834.28 is: 10,811.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,802.04 : 19,047.40 = 7,834.28 : x
  2. Step 2: Convert to fraction form
    13,802.04/19,047.40 = 7,834.28/x
  3. Step 3: Cross multiply
    13,802.04x = 19,047.40 × 7,834.28
  4. Step 4: Simplify right side
    13,802.04x = 149,222,550.05
  5. Step 5: Solve for x
    x = 149,222,550.05/13,802.04
  6. Step 6: Final answer
    x = 10,811.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.