Home / 18,417.10-25,408.93-12,047.32

Finding the Fourth Proportional to 18,417.10, 25,408.93 and 12,047.32

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Solution

The fourth proportional to 18,417.10, 25,408.93 and 12,047.32 is: 16,620.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,417.10 : 25,408.93 = 12,047.32 : x
  2. Step 2: Convert to fraction form
    18,417.10/25,408.93 = 12,047.32/x
  3. Step 3: Cross multiply
    18,417.10x = 25,408.93 × 12,047.32
  4. Step 4: Simplify right side
    18,417.10x = 306,109,510.57
  5. Step 5: Solve for x
    x = 306,109,510.57/18,417.10
  6. Step 6: Final answer
    x = 16,620.94

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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.