Home / 10,538.96-15,807.80-3,618.32

Finding the Fourth Proportional to 10,538.96, 15,807.80 and 3,618.32

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Solution

The fourth proportional to 10,538.96, 15,807.80 and 3,618.32 is: 5,427.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,538.96 : 15,807.80 = 3,618.32 : x
  2. Step 2: Convert to fraction form
    10,538.96/15,807.80 = 3,618.32/x
  3. Step 3: Cross multiply
    10,538.96x = 15,807.80 × 3,618.32
  4. Step 4: Simplify right side
    10,538.96x = 57,197,678.90
  5. Step 5: Solve for x
    x = 57,197,678.90/10,538.96
  6. Step 6: Final answer
    x = 5,427.26

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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.