Home / 16,985-23,439.30-9,535.40

Finding the Fourth Proportional to 16,985, 23,439.30 and 9,535.40

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Solution

The fourth proportional to 16,985, 23,439.30 and 9,535.40 is: 13,158.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,985 : 23,439.30 = 9,535.40 : x
  2. Step 2: Convert to fraction form
    16,985/23,439.30 = 9,535.40/x
  3. Step 3: Cross multiply
    16,985x = 23,439.30 × 9,535.40
  4. Step 4: Simplify right side
    16,985x = 223,503,101.22
  5. Step 5: Solve for x
    x = 223,503,101.22/16,985
  6. Step 6: Final answer
    x = 13,158.85

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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.