Home / 10,449.36-15,658.65-7,663.05

Finding the Fourth Proportional to 10,449.36, 15,658.65 and 7,663.05

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Solution

The fourth proportional to 10,449.36, 15,658.65 and 7,663.05 is: 11,483.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,449.36 : 15,658.65 = 7,663.05 : x
  2. Step 2: Convert to fraction form
    10,449.36/15,658.65 = 7,663.05/x
  3. Step 3: Cross multiply
    10,449.36x = 15,658.65 × 7,663.05
  4. Step 4: Simplify right side
    10,449.36x = 119,993,017.88
  5. Step 5: Solve for x
    x = 119,993,017.88/10,449.36
  6. Step 6: Final answer
    x = 11,483.29

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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.