Home / 9,914.40-13,681.89-5,438.34

Finding the Fourth Proportional to 9,914.40, 13,681.89 and 5,438.34

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Solution

The fourth proportional to 9,914.40, 13,681.89 and 5,438.34 is: 7,504.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,914.40 : 13,681.89 = 5,438.34 : x
  2. Step 2: Convert to fraction form
    9,914.40/13,681.89 = 5,438.34/x
  3. Step 3: Cross multiply
    9,914.40x = 13,681.89 × 5,438.34
  4. Step 4: Simplify right side
    9,914.40x = 74,406,769.66
  5. Step 5: Solve for x
    x = 74,406,769.66/9,914.40
  6. Step 6: Final answer
    x = 7,504.92

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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.