Home / 11,176.74-15,430.66-7,403.14

Finding the Fourth Proportional to 11,176.74, 15,430.66 and 7,403.14

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Solution

The fourth proportional to 11,176.74, 15,430.66 and 7,403.14 is: 10,220.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,176.74 : 15,430.66 = 7,403.14 : x
  2. Step 2: Convert to fraction form
    11,176.74/15,430.66 = 7,403.14/x
  3. Step 3: Cross multiply
    11,176.74x = 15,430.66 × 7,403.14
  4. Step 4: Simplify right side
    11,176.74x = 114,235,279.19
  5. Step 5: Solve for x
    x = 114,235,279.19/11,176.74
  6. Step 6: Final answer
    x = 10,220.80

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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.