Home / 9,785.60-13,488.40-7,657.52

Finding the Fourth Proportional to 9,785.60, 13,488.40 and 7,657.52

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Solution

The fourth proportional to 9,785.60, 13,488.40 and 7,657.52 is: 10,555.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,785.60 : 13,488.40 = 7,657.52 : x
  2. Step 2: Convert to fraction form
    9,785.60/13,488.40 = 7,657.52/x
  3. Step 3: Cross multiply
    9,785.60x = 13,488.40 × 7,657.52
  4. Step 4: Simplify right side
    9,785.60x = 103,287,692.77
  5. Step 5: Solve for x
    x = 103,287,692.77/9,785.60
  6. Step 6: Final answer
    x = 10,555.07

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