Home / 13,730.83-18,948.57-7,443.22

Finding the Fourth Proportional to 13,730.83, 18,948.57 and 7,443.22

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Solution

The fourth proportional to 13,730.83, 18,948.57 and 7,443.22 is: 10,271.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,730.83 : 18,948.57 = 7,443.22 : x
  2. Step 2: Convert to fraction form
    13,730.83/18,948.57 = 7,443.22/x
  3. Step 3: Cross multiply
    13,730.83x = 18,948.57 × 7,443.22
  4. Step 4: Simplify right side
    13,730.83x = 141,038,375.20
  5. Step 5: Solve for x
    x = 141,038,375.20/13,730.83
  6. Step 6: Final answer
    x = 10,271.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.