Home / 12,325.88-16,989.74-9,632.40

Finding the Fourth Proportional to 12,325.88, 16,989.74 and 9,632.40

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Solution

The fourth proportional to 12,325.88, 16,989.74 and 9,632.40 is: 13,277.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,325.88 : 16,989.74 = 9,632.40 : x
  2. Step 2: Convert to fraction form
    12,325.88/16,989.74 = 9,632.40/x
  3. Step 3: Cross multiply
    12,325.88x = 16,989.74 × 9,632.40
  4. Step 4: Simplify right side
    12,325.88x = 163,651,971.58
  5. Step 5: Solve for x
    x = 163,651,971.58/12,325.88
  6. Step 6: Final answer
    x = 13,277.10

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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.