Home / 18,303.60-27,455.64-5,156.24

Finding the Fourth Proportional to 18,303.60, 27,455.64 and 5,156.24

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Solution

The fourth proportional to 18,303.60, 27,455.64 and 5,156.24 is: 7,734.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,303.60 : 27,455.64 = 5,156.24 : x
  2. Step 2: Convert to fraction form
    18,303.60/27,455.64 = 5,156.24/x
  3. Step 3: Cross multiply
    18,303.60x = 27,455.64 × 5,156.24
  4. Step 4: Simplify right side
    18,303.60x = 141,567,869.19
  5. Step 5: Solve for x
    x = 141,567,869.19/18,303.60
  6. Step 6: Final answer
    x = 7,734.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.