Home / 9,515.66-13,130.43-5,322.86

Finding the Fourth Proportional to 9,515.66, 13,130.43 and 5,322.86

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Solution

The fourth proportional to 9,515.66, 13,130.43 and 5,322.86 is: 7,344.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,515.66 : 13,130.43 = 5,322.86 : x
  2. Step 2: Convert to fraction form
    9,515.66/13,130.43 = 5,322.86/x
  3. Step 3: Cross multiply
    9,515.66x = 13,130.43 × 5,322.86
  4. Step 4: Simplify right side
    9,515.66x = 69,891,440.63
  5. Step 5: Solve for x
    x = 69,891,440.63/9,515.66
  6. Step 6: Final answer
    x = 7,344.89

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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.