Home / 9,869.84-13,619.80-5,393.63

Finding the Fourth Proportional to 9,869.84, 13,619.80 and 5,393.63

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Solution

The fourth proportional to 9,869.84, 13,619.80 and 5,393.63 is: 7,442.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,869.84 : 13,619.80 = 5,393.63 : x
  2. Step 2: Convert to fraction form
    9,869.84/13,619.80 = 5,393.63/x
  3. Step 3: Cross multiply
    9,869.84x = 13,619.80 × 5,393.63
  4. Step 4: Simplify right side
    9,869.84x = 73,460,080.29
  5. Step 5: Solve for x
    x = 73,460,080.29/9,869.84
  6. Step 6: Final answer
    x = 7,442.89

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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.