Home / 9,515.31-13,130.19-5,536.59

Finding the Fourth Proportional to 9,515.31, 13,130.19 and 5,536.59

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Solution

The fourth proportional to 9,515.31, 13,130.19 and 5,536.59 is: 7,639.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,515.31 : 13,130.19 = 5,536.59 : x
  2. Step 2: Convert to fraction form
    9,515.31/13,130.19 = 5,536.59/x
  3. Step 3: Cross multiply
    9,515.31x = 13,130.19 × 5,536.59
  4. Step 4: Simplify right side
    9,515.31x = 72,696,478.65
  5. Step 5: Solve for x
    x = 72,696,478.65/9,515.31
  6. Step 6: Final answer
    x = 7,639.95

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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.