Home / 7,415.60-11,123.40-6,710.90

Finding the Fourth Proportional to 7,415.60, 11,123.40 and 6,710.90

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Solution

The fourth proportional to 7,415.60, 11,123.40 and 6,710.90 is: 10,066.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.60 : 11,123.40 = 6,710.90 : x
  2. Step 2: Convert to fraction form
    7,415.60/11,123.40 = 6,710.90/x
  3. Step 3: Cross multiply
    7,415.60x = 11,123.40 × 6,710.90
  4. Step 4: Simplify right side
    7,415.60x = 74,648,025.06
  5. Step 5: Solve for x
    x = 74,648,025.06/7,415.60
  6. Step 6: Final answer
    x = 10,066.35

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Double scale
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Similar ratio
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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.