Home / 18,319.04-27,457.29-8,437.58

Finding the Fourth Proportional to 18,319.04, 27,457.29 and 8,437.58

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Solution

The fourth proportional to 18,319.04, 27,457.29 and 8,437.58 is: 12,646.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.04 : 27,457.29 = 8,437.58 : x
  2. Step 2: Convert to fraction form
    18,319.04/27,457.29 = 8,437.58/x
  3. Step 3: Cross multiply
    18,319.04x = 27,457.29 × 8,437.58
  4. Step 4: Simplify right side
    18,319.04x = 231,673,080.96
  5. Step 5: Solve for x
    x = 231,673,080.96/18,319.04
  6. Step 6: Final answer
    x = 12,646.57

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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.