Home / 12,841.60-19,265.10-7,290.40

Finding the Fourth Proportional to 12,841.60, 19,265.10 and 7,290.40

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Solution

The fourth proportional to 12,841.60, 19,265.10 and 7,290.40 is: 10,937.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,841.60 : 19,265.10 = 7,290.40 : x
  2. Step 2: Convert to fraction form
    12,841.60/19,265.10 = 7,290.40/x
  3. Step 3: Cross multiply
    12,841.60x = 19,265.10 × 7,290.40
  4. Step 4: Simplify right side
    12,841.60x = 140,450,285.04
  5. Step 5: Solve for x
    x = 140,450,285.04/12,841.60
  6. Step 6: Final answer
    x = 10,937.13

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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.