Home / 13,588.77-20,388.33-7,010.76

Finding the Fourth Proportional to 13,588.77, 20,388.33 and 7,010.76

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Solution

The fourth proportional to 13,588.77, 20,388.33 and 7,010.76 is: 10,518.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,588.77 : 20,388.33 = 7,010.76 : x
  2. Step 2: Convert to fraction form
    13,588.77/20,388.33 = 7,010.76/x
  3. Step 3: Cross multiply
    13,588.77x = 20,388.33 × 7,010.76
  4. Step 4: Simplify right side
    13,588.77x = 142,937,688.43
  5. Step 5: Solve for x
    x = 142,937,688.43/13,588.77
  6. Step 6: Final answer
    x = 10,518.81

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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.