Home / 10,376.75-14,319.92-5,661.13

Finding the Fourth Proportional to 10,376.75, 14,319.92 and 5,661.13

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Solution

The fourth proportional to 10,376.75, 14,319.92 and 5,661.13 is: 7,812.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,376.75 : 14,319.92 = 5,661.13 : x
  2. Step 2: Convert to fraction form
    10,376.75/14,319.92 = 5,661.13/x
  3. Step 3: Cross multiply
    10,376.75x = 14,319.92 × 5,661.13
  4. Step 4: Simplify right side
    10,376.75x = 81,066,928.71
  5. Step 5: Solve for x
    x = 81,066,928.71/10,376.75
  6. Step 6: Final answer
    x = 7,812.36

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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.