Home / 13,346.43-18,417.03-7,681.49

Finding the Fourth Proportional to 13,346.43, 18,417.03 and 7,681.49

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Solution

The fourth proportional to 13,346.43, 18,417.03 and 7,681.49 is: 10,599.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.43 : 18,417.03 = 7,681.49 : x
  2. Step 2: Convert to fraction form
    13,346.43/18,417.03 = 7,681.49/x
  3. Step 3: Cross multiply
    13,346.43x = 18,417.03 × 7,681.49
  4. Step 4: Simplify right side
    13,346.43x = 141,470,231.77
  5. Step 5: Solve for x
    x = 141,470,231.77/13,346.43
  6. Step 6: Final answer
    x = 10,599.86

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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.