Home / 9,590.40-13,251.60-7,840.80

Finding the Fourth Proportional to 9,590.40, 13,251.60 and 7,840.80

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Solution

The fourth proportional to 9,590.40, 13,251.60 and 7,840.80 is: 10,834.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,590.40 : 13,251.60 = 7,840.80 : x
  2. Step 2: Convert to fraction form
    9,590.40/13,251.60 = 7,840.80/x
  3. Step 3: Cross multiply
    9,590.40x = 13,251.60 × 7,840.80
  4. Step 4: Simplify right side
    9,590.40x = 103,903,145.28
  5. Step 5: Solve for x
    x = 103,903,145.28/9,590.40
  6. Step 6: Final answer
    x = 10,834.08

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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.