Home / 13,099.06-18,076.70-7,130.77

Finding the Fourth Proportional to 13,099.06, 18,076.70 and 7,130.77

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Solution

The fourth proportional to 13,099.06, 18,076.70 and 7,130.77 is: 9,840.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,099.06 : 18,076.70 = 7,130.77 : x
  2. Step 2: Convert to fraction form
    13,099.06/18,076.70 = 7,130.77/x
  3. Step 3: Cross multiply
    13,099.06x = 18,076.70 × 7,130.77
  4. Step 4: Simplify right side
    13,099.06x = 128,900,790.06
  5. Step 5: Solve for x
    x = 128,900,790.06/13,099.06
  6. Step 6: Final answer
    x = 9,840.46

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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.