Home / 13,165.34-18,166.58-7,500.10

Finding the Fourth Proportional to 13,165.34, 18,166.58 and 7,500.10

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Solution

The fourth proportional to 13,165.34, 18,166.58 and 7,500.10 is: 10,349.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,165.34 : 18,166.58 = 7,500.10 : x
  2. Step 2: Convert to fraction form
    13,165.34/18,166.58 = 7,500.10/x
  3. Step 3: Cross multiply
    13,165.34x = 18,166.58 × 7,500.10
  4. Step 4: Simplify right side
    13,165.34x = 136,251,166.66
  5. Step 5: Solve for x
    x = 136,251,166.66/13,165.34
  6. Step 6: Final answer
    x = 10,349.23

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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.