Home / 10,913.20-16,326.60-9,468.40

Finding the Fourth Proportional to 10,913.20, 16,326.60 and 9,468.40

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Solution

The fourth proportional to 10,913.20, 16,326.60 and 9,468.40 is: 14,165.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.20 : 16,326.60 = 9,468.40 : x
  2. Step 2: Convert to fraction form
    10,913.20/16,326.60 = 9,468.40/x
  3. Step 3: Cross multiply
    10,913.20x = 16,326.60 × 9,468.40
  4. Step 4: Simplify right side
    10,913.20x = 154,586,779.44
  5. Step 5: Solve for x
    x = 154,586,779.44/10,913.20
  6. Step 6: Final answer
    x = 14,165.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.