Home / 9,540.84-13,165.90-5,291.57

Finding the Fourth Proportional to 9,540.84, 13,165.90 and 5,291.57

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Solution

The fourth proportional to 9,540.84, 13,165.90 and 5,291.57 is: 7,302.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,540.84 : 13,165.90 = 5,291.57 : x
  2. Step 2: Convert to fraction form
    9,540.84/13,165.90 = 5,291.57/x
  3. Step 3: Cross multiply
    9,540.84x = 13,165.90 × 5,291.57
  4. Step 4: Simplify right side
    9,540.84x = 69,668,281.46
  5. Step 5: Solve for x
    x = 69,668,281.46/9,540.84
  6. Step 6: Final answer
    x = 7,302.11

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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.