Home / 14,109.04-19,470.48-7,821.28

Finding the Fourth Proportional to 14,109.04, 19,470.48 and 7,821.28

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Solution

The fourth proportional to 14,109.04, 19,470.48 and 7,821.28 is: 10,793.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,109.04 : 19,470.48 = 7,821.28 : x
  2. Step 2: Convert to fraction form
    14,109.04/19,470.48 = 7,821.28/x
  3. Step 3: Cross multiply
    14,109.04x = 19,470.48 × 7,821.28
  4. Step 4: Simplify right side
    14,109.04x = 152,284,075.81
  5. Step 5: Solve for x
    x = 152,284,075.81/14,109.04
  6. Step 6: Final answer
    x = 10,793.37

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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.