Home / 13,312.51-18,371.27-7,344.20

Finding the Fourth Proportional to 13,312.51, 18,371.27 and 7,344.20

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Solution

The fourth proportional to 13,312.51, 18,371.27 and 7,344.20 is: 10,134.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.51 : 18,371.27 = 7,344.20 : x
  2. Step 2: Convert to fraction form
    13,312.51/18,371.27 = 7,344.20/x
  3. Step 3: Cross multiply
    13,312.51x = 18,371.27 × 7,344.20
  4. Step 4: Simplify right side
    13,312.51x = 134,922,180.10
  5. Step 5: Solve for x
    x = 134,922,180.10/13,312.51
  6. Step 6: Final answer
    x = 10,134.99

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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.