Home / 11,390.40-17,087.40-4,370.13

Finding the Fourth Proportional to 11,390.40, 17,087.40 and 4,370.13

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Solution

The fourth proportional to 11,390.40, 17,087.40 and 4,370.13 is: 6,555.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.40 : 17,087.40 = 4,370.13 : x
  2. Step 2: Convert to fraction form
    11,390.40/17,087.40 = 4,370.13/x
  3. Step 3: Cross multiply
    11,390.40x = 17,087.40 × 4,370.13
  4. Step 4: Simplify right side
    11,390.40x = 74,674,159.36
  5. Step 5: Solve for x
    x = 74,674,159.36/11,390.40
  6. Step 6: Final answer
    x = 6,555.89

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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.