Home / 13,130.24-18,107.52-10,141.60

Finding the Fourth Proportional to 13,130.24, 18,107.52 and 10,141.60

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Solution

The fourth proportional to 13,130.24, 18,107.52 and 10,141.60 is: 13,985.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130.24 : 18,107.52 = 10,141.60 : x
  2. Step 2: Convert to fraction form
    13,130.24/18,107.52 = 10,141.60/x
  3. Step 3: Cross multiply
    13,130.24x = 18,107.52 × 10,141.60
  4. Step 4: Simplify right side
    13,130.24x = 183,639,224.83
  5. Step 5: Solve for x
    x = 183,639,224.83/13,130.24
  6. Step 6: Final answer
    x = 13,985.98

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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.