Home / 13,717.95-18,930.75-7,430.32

Finding the Fourth Proportional to 13,717.95, 18,930.75 and 7,430.32

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Solution

The fourth proportional to 13,717.95, 18,930.75 and 7,430.32 is: 10,253.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.95 : 18,930.75 = 7,430.32 : x
  2. Step 2: Convert to fraction form
    13,717.95/18,930.75 = 7,430.32/x
  3. Step 3: Cross multiply
    13,717.95x = 18,930.75 × 7,430.32
  4. Step 4: Simplify right side
    13,717.95x = 140,661,530.34
  5. Step 5: Solve for x
    x = 140,661,530.34/13,717.95
  6. Step 6: Final answer
    x = 10,253.83

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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.