Home / 11,430.84-15,771.06-7,450.50

Finding the Fourth Proportional to 11,430.84, 15,771.06 and 7,450.50

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Solution

The fourth proportional to 11,430.84, 15,771.06 and 7,450.50 is: 10,279.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,430.84 : 15,771.06 = 7,450.50 : x
  2. Step 2: Convert to fraction form
    11,430.84/15,771.06 = 7,450.50/x
  3. Step 3: Cross multiply
    11,430.84x = 15,771.06 × 7,450.50
  4. Step 4: Simplify right side
    11,430.84x = 117,502,282.53
  5. Step 5: Solve for x
    x = 117,502,282.53/11,430.84
  6. Step 6: Final answer
    x = 10,279.41

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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.