Home / 7,429.40-11,135.10-4,303.40

Finding the Fourth Proportional to 7,429.40, 11,135.10 and 4,303.40

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Solution

The fourth proportional to 7,429.40, 11,135.10 and 4,303.40 is: 6,449.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.40 : 11,135.10 = 4,303.40 : x
  2. Step 2: Convert to fraction form
    7,429.40/11,135.10 = 4,303.40/x
  3. Step 3: Cross multiply
    7,429.40x = 11,135.10 × 4,303.40
  4. Step 4: Simplify right side
    7,429.40x = 47,918,789.34
  5. Step 5: Solve for x
    x = 47,918,789.34/7,429.40
  6. Step 6: Final answer
    x = 6,449.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.