Home / 10,905.60-15,045.78-6,187.14

Finding the Fourth Proportional to 10,905.60, 15,045.78 and 6,187.14

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Solution

The fourth proportional to 10,905.60, 15,045.78 and 6,187.14 is: 8,536.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.60 : 15,045.78 = 6,187.14 : x
  2. Step 2: Convert to fraction form
    10,905.60/15,045.78 = 6,187.14/x
  3. Step 3: Cross multiply
    10,905.60x = 15,045.78 × 6,187.14
  4. Step 4: Simplify right side
    10,905.60x = 93,090,347.27
  5. Step 5: Solve for x
    x = 93,090,347.27/10,905.60
  6. Step 6: Final answer
    x = 8,536.01

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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.