Home / 10,587.40-15,875.97-3,190.48

Finding the Fourth Proportional to 10,587.40, 15,875.97 and 3,190.48

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Solution

The fourth proportional to 10,587.40, 15,875.97 and 3,190.48 is: 4,784.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,587.40 : 15,875.97 = 3,190.48 : x
  2. Step 2: Convert to fraction form
    10,587.40/15,875.97 = 3,190.48/x
  3. Step 3: Cross multiply
    10,587.40x = 15,875.97 × 3,190.48
  4. Step 4: Simplify right side
    10,587.40x = 50,651,964.77
  5. Step 5: Solve for x
    x = 50,651,964.77/10,587.40
  6. Step 6: Final answer
    x = 4,784.17

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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.