Home / 13,347.29-18,417.66-7,378.15

Finding the Fourth Proportional to 13,347.29, 18,417.66 and 7,378.15

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Solution

The fourth proportional to 13,347.29, 18,417.66 and 7,378.15 is: 10,180.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.29 : 18,417.66 = 7,378.15 : x
  2. Step 2: Convert to fraction form
    13,347.29/18,417.66 = 7,378.15/x
  3. Step 3: Cross multiply
    13,347.29x = 18,417.66 × 7,378.15
  4. Step 4: Simplify right side
    13,347.29x = 135,888,258.13
  5. Step 5: Solve for x
    x = 135,888,258.13/13,347.29
  6. Step 6: Final answer
    x = 10,180.96

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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.