Home / 9,449.13-13,039.80-5,470.45

Finding the Fourth Proportional to 9,449.13, 13,039.80 and 5,470.45

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Solution

The fourth proportional to 9,449.13, 13,039.80 and 5,470.45 is: 7,549.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,449.13 : 13,039.80 = 5,470.45 : x
  2. Step 2: Convert to fraction form
    9,449.13/13,039.80 = 5,470.45/x
  3. Step 3: Cross multiply
    9,449.13x = 13,039.80 × 5,470.45
  4. Step 4: Simplify right side
    9,449.13x = 71,333,573.91
  5. Step 5: Solve for x
    x = 71,333,573.91/9,449.13
  6. Step 6: Final answer
    x = 7,549.22

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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.