Home / 13,268.17-18,312.68-7,606.71

Finding the Fourth Proportional to 13,268.17, 18,312.68 and 7,606.71

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Solution

The fourth proportional to 13,268.17, 18,312.68 and 7,606.71 is: 10,498.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.17 : 18,312.68 = 7,606.71 : x
  2. Step 2: Convert to fraction form
    13,268.17/18,312.68 = 7,606.71/x
  3. Step 3: Cross multiply
    13,268.17x = 18,312.68 × 7,606.71
  4. Step 4: Simplify right side
    13,268.17x = 139,299,246.08
  5. Step 5: Solve for x
    x = 139,299,246.08/13,268.17
  6. Step 6: Final answer
    x = 10,498.75

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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.