Home / 13,292.10-18,342.92-7,242.28

Finding the Fourth Proportional to 13,292.10, 18,342.92 and 7,242.28

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Solution

The fourth proportional to 13,292.10, 18,342.92 and 7,242.28 is: 9,994.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,292.10 : 18,342.92 = 7,242.28 : x
  2. Step 2: Convert to fraction form
    13,292.10/18,342.92 = 7,242.28/x
  3. Step 3: Cross multiply
    13,292.10x = 18,342.92 × 7,242.28
  4. Step 4: Simplify right side
    13,292.10x = 132,844,534.91
  5. Step 5: Solve for x
    x = 132,844,534.91/13,292.10
  6. Step 6: Final answer
    x = 9,994.25

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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.