Home / 10,639.37-15,973.19-9,089.34

Finding the Fourth Proportional to 10,639.37, 15,973.19 and 9,089.34

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Solution

The fourth proportional to 10,639.37, 15,973.19 and 9,089.34 is: 13,646.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.37 : 15,973.19 = 9,089.34 : x
  2. Step 2: Convert to fraction form
    10,639.37/15,973.19 = 9,089.34/x
  3. Step 3: Cross multiply
    10,639.37x = 15,973.19 × 9,089.34
  4. Step 4: Simplify right side
    10,639.37x = 145,185,754.79
  5. Step 5: Solve for x
    x = 145,185,754.79/10,639.37
  6. Step 6: Final answer
    x = 13,646.09

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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.