Home / 10,239.21-15,358.95-7,102.08

Finding the Fourth Proportional to 10,239.21, 15,358.95 and 7,102.08

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Solution

The fourth proportional to 10,239.21, 15,358.95 and 7,102.08 is: 10,653.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,239.21 : 15,358.95 = 7,102.08 : x
  2. Step 2: Convert to fraction form
    10,239.21/15,358.95 = 7,102.08/x
  3. Step 3: Cross multiply
    10,239.21x = 15,358.95 × 7,102.08
  4. Step 4: Simplify right side
    10,239.21x = 109,080,491.62
  5. Step 5: Solve for x
    x = 109,080,491.62/10,239.21
  6. Step 6: Final answer
    x = 10,653.21

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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.