Home / 13,153.05-18,151.65-7,185.27

Finding the Fourth Proportional to 13,153.05, 18,151.65 and 7,185.27

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Solution

The fourth proportional to 13,153.05, 18,151.65 and 7,185.27 is: 9,915.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153.05 : 18,151.65 = 7,185.27 : x
  2. Step 2: Convert to fraction form
    13,153.05/18,151.65 = 7,185.27/x
  3. Step 3: Cross multiply
    13,153.05x = 18,151.65 × 7,185.27
  4. Step 4: Simplify right side
    13,153.05x = 130,424,574.26
  5. Step 5: Solve for x
    x = 130,424,574.26/13,153.05
  6. Step 6: Final answer
    x = 9,915.92

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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.