Home / 9,916.47-13,685.58-5,441.07

Finding the Fourth Proportional to 9,916.47, 13,685.58 and 5,441.07

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Solution

The fourth proportional to 9,916.47, 13,685.58 and 5,441.07 is: 7,509.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,916.47 : 13,685.58 = 5,441.07 : x
  2. Step 2: Convert to fraction form
    9,916.47/13,685.58 = 5,441.07/x
  3. Step 3: Cross multiply
    9,916.47x = 13,685.58 × 5,441.07
  4. Step 4: Simplify right side
    9,916.47x = 74,464,198.77
  5. Step 5: Solve for x
    x = 74,464,198.77/9,916.47
  6. Step 6: Final answer
    x = 7,509.14

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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.