Home / 26,148.78-39,225.74-7,429.68

Finding the Fourth Proportional to 26,148.78, 39,225.74 and 7,429.68

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Solution

The fourth proportional to 26,148.78, 39,225.74 and 7,429.68 is: 11,145.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,148.78 : 39,225.74 = 7,429.68 : x
  2. Step 2: Convert to fraction form
    26,148.78/39,225.74 = 7,429.68/x
  3. Step 3: Cross multiply
    26,148.78x = 39,225.74 × 7,429.68
  4. Step 4: Simplify right side
    26,148.78x = 291,434,658.81
  5. Step 5: Solve for x
    x = 291,434,658.81/26,148.78
  6. Step 6: Final answer
    x = 11,145.25

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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.