Home / 11,038.40-16,557.60-10,309.40

Finding the Fourth Proportional to 11,038.40, 16,557.60 and 10,309.40

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Solution

The fourth proportional to 11,038.40, 16,557.60 and 10,309.40 is: 15,464.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,038.40 : 16,557.60 = 10,309.40 : x
  2. Step 2: Convert to fraction form
    11,038.40/16,557.60 = 10,309.40/x
  3. Step 3: Cross multiply
    11,038.40x = 16,557.60 × 10,309.40
  4. Step 4: Simplify right side
    11,038.40x = 170,698,921.44
  5. Step 5: Solve for x
    x = 170,698,921.44/11,038.40
  6. Step 6: Final answer
    x = 15,464.10

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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.