Home / 9,720.56-14,578.98-3,145.16

Finding the Fourth Proportional to 9,720.56, 14,578.98 and 3,145.16

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Solution

The fourth proportional to 9,720.56, 14,578.98 and 3,145.16 is: 4,717.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,720.56 : 14,578.98 = 3,145.16 : x
  2. Step 2: Convert to fraction form
    9,720.56/14,578.98 = 3,145.16/x
  3. Step 3: Cross multiply
    9,720.56x = 14,578.98 × 3,145.16
  4. Step 4: Simplify right side
    9,720.56x = 45,853,224.74
  5. Step 5: Solve for x
    x = 45,853,224.74/9,720.56
  6. Step 6: Final answer
    x = 4,717.14

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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.