Home / 9,429.90-13,013.85-5,238.14

Finding the Fourth Proportional to 9,429.90, 13,013.85 and 5,238.14

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Solution

The fourth proportional to 9,429.90, 13,013.85 and 5,238.14 is: 7,228.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,429.90 : 13,013.85 = 5,238.14 : x
  2. Step 2: Convert to fraction form
    9,429.90/13,013.85 = 5,238.14/x
  3. Step 3: Cross multiply
    9,429.90x = 13,013.85 × 5,238.14
  4. Step 4: Simplify right side
    9,429.90x = 68,168,368.24
  5. Step 5: Solve for x
    x = 68,168,368.24/9,429.90
  6. Step 6: Final answer
    x = 7,228.96

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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.