Home / 13,151.25-19,730.06-4,386.85

Finding the Fourth Proportional to 13,151.25, 19,730.06 and 4,386.85

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Solution

The fourth proportional to 13,151.25, 19,730.06 and 4,386.85 is: 6,581.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,151.25 : 19,730.06 = 4,386.85 : x
  2. Step 2: Convert to fraction form
    13,151.25/19,730.06 = 4,386.85/x
  3. Step 3: Cross multiply
    13,151.25x = 19,730.06 × 4,386.85
  4. Step 4: Simplify right side
    13,151.25x = 86,552,813.71
  5. Step 5: Solve for x
    x = 86,552,813.71/13,151.25
  6. Step 6: Final answer
    x = 6,581.34

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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.