Home / 13,359.90-18,436.53-7,391.52

Finding the Fourth Proportional to 13,359.90, 18,436.53 and 7,391.52

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Solution

The fourth proportional to 13,359.90, 18,436.53 and 7,391.52 is: 10,200.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.90 : 18,436.53 = 7,391.52 : x
  2. Step 2: Convert to fraction form
    13,359.90/18,436.53 = 7,391.52/x
  3. Step 3: Cross multiply
    13,359.90x = 18,436.53 × 7,391.52
  4. Step 4: Simplify right side
    13,359.90x = 136,273,980.23
  5. Step 5: Solve for x
    x = 136,273,980.23/13,359.90
  6. Step 6: Final answer
    x = 10,200.22

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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.