Home / 15,429.66-23,145.56-7,636.38

Finding the Fourth Proportional to 15,429.66, 23,145.56 and 7,636.38

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Solution

The fourth proportional to 15,429.66, 23,145.56 and 7,636.38 is: 11,455.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,429.66 : 23,145.56 = 7,636.38 : x
  2. Step 2: Convert to fraction form
    15,429.66/23,145.56 = 7,636.38/x
  3. Step 3: Cross multiply
    15,429.66x = 23,145.56 × 7,636.38
  4. Step 4: Simplify right side
    15,429.66x = 176,748,291.47
  5. Step 5: Solve for x
    x = 176,748,291.47/15,429.66
  6. Step 6: Final answer
    x = 11,455.10

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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.