Home / 13,151.34-19,726.64-4,386.42

Finding the Fourth Proportional to 13,151.34, 19,726.64 and 4,386.42

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Solution

The fourth proportional to 13,151.34, 19,726.64 and 4,386.42 is: 6,579.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,151.34 : 19,726.64 = 4,386.42 : x
  2. Step 2: Convert to fraction form
    13,151.34/19,726.64 = 4,386.42/x
  3. Step 3: Cross multiply
    13,151.34x = 19,726.64 × 4,386.42
  4. Step 4: Simplify right side
    13,151.34x = 86,529,328.23
  5. Step 5: Solve for x
    x = 86,529,328.23/13,151.34
  6. Step 6: Final answer
    x = 6,579.51

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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.