Home / 13,053.16-19,578.30-12,761.32

Finding the Fourth Proportional to 13,053.16, 19,578.30 and 12,761.32

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Solution

The fourth proportional to 13,053.16, 19,578.30 and 12,761.32 is: 19,140.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,053.16 : 19,578.30 = 12,761.32 : x
  2. Step 2: Convert to fraction form
    13,053.16/19,578.30 = 12,761.32/x
  3. Step 3: Cross multiply
    13,053.16x = 19,578.30 × 12,761.32
  4. Step 4: Simplify right side
    13,053.16x = 249,844,951.36
  5. Step 5: Solve for x
    x = 249,844,951.36/13,053.16
  6. Step 6: Final answer
    x = 19,140.57

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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.