Home / 16,405.02-22,639.36-9,235.20

Finding the Fourth Proportional to 16,405.02, 22,639.36 and 9,235.20

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Solution

The fourth proportional to 16,405.02, 22,639.36 and 9,235.20 is: 12,744.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,405.02 : 22,639.36 = 9,235.20 : x
  2. Step 2: Convert to fraction form
    16,405.02/22,639.36 = 9,235.20/x
  3. Step 3: Cross multiply
    16,405.02x = 22,639.36 × 9,235.20
  4. Step 4: Simplify right side
    16,405.02x = 209,078,994.38
  5. Step 5: Solve for x
    x = 209,078,994.38/16,405.02
  6. Step 6: Final answer
    x = 12,744.82

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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.