Home / 10,557.36-15,816.60-9,390.96

Finding the Fourth Proportional to 10,557.36, 15,816.60 and 9,390.96

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Solution

The fourth proportional to 10,557.36, 15,816.60 and 9,390.96 is: 14,069.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,557.36 : 15,816.60 = 9,390.96 : x
  2. Step 2: Convert to fraction form
    10,557.36/15,816.60 = 9,390.96/x
  3. Step 3: Cross multiply
    10,557.36x = 15,816.60 × 9,390.96
  4. Step 4: Simplify right side
    10,557.36x = 148,533,057.94
  5. Step 5: Solve for x
    x = 148,533,057.94/10,557.36
  6. Step 6: Final answer
    x = 14,069.15

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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.