Home / 15,002.07-20,689.41-12,492.49

Finding the Fourth Proportional to 15,002.07, 20,689.41 and 12,492.49

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Solution

The fourth proportional to 15,002.07, 20,689.41 and 12,492.49 is: 17,228.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,002.07 : 20,689.41 = 12,492.49 : x
  2. Step 2: Convert to fraction form
    15,002.07/20,689.41 = 12,492.49/x
  3. Step 3: Cross multiply
    15,002.07x = 20,689.41 × 12,492.49
  4. Step 4: Simplify right side
    15,002.07x = 258,462,247.53
  5. Step 5: Solve for x
    x = 258,462,247.53/15,002.07
  6. Step 6: Final answer
    x = 17,228.44

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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.