Home / 9,829.28-13,564.80-5,638.34

Finding the Fourth Proportional to 9,829.28, 13,564.80 and 5,638.34

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Solution

The fourth proportional to 9,829.28, 13,564.80 and 5,638.34 is: 7,781.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,829.28 : 13,564.80 = 5,638.34 : x
  2. Step 2: Convert to fraction form
    9,829.28/13,564.80 = 5,638.34/x
  3. Step 3: Cross multiply
    9,829.28x = 13,564.80 × 5,638.34
  4. Step 4: Simplify right side
    9,829.28x = 76,482,988.34
  5. Step 5: Solve for x
    x = 76,482,988.34/9,829.28
  6. Step 6: Final answer
    x = 7,781.14

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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.