Home / 16,403.18-22,638.38-9,235.78

Finding the Fourth Proportional to 16,403.18, 22,638.38 and 9,235.78

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Solution

The fourth proportional to 16,403.18, 22,638.38 and 9,235.78 is: 12,746.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,403.18 : 22,638.38 = 9,235.78 : x
  2. Step 2: Convert to fraction form
    16,403.18/22,638.38 = 9,235.78/x
  3. Step 3: Cross multiply
    16,403.18x = 22,638.38 × 9,235.78
  4. Step 4: Simplify right side
    16,403.18x = 209,082,994.46
  5. Step 5: Solve for x
    x = 209,082,994.46/16,403.18
  6. Step 6: Final answer
    x = 12,746.50

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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.