Home / 13,346.21-18,417.69-7,681.07

Finding the Fourth Proportional to 13,346.21, 18,417.69 and 7,681.07

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Solution

The fourth proportional to 13,346.21, 18,417.69 and 7,681.07 is: 10,599.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.21 : 18,417.69 = 7,681.07 : x
  2. Step 2: Convert to fraction form
    13,346.21/18,417.69 = 7,681.07/x
  3. Step 3: Cross multiply
    13,346.21x = 18,417.69 × 7,681.07
  4. Step 4: Simplify right side
    13,346.21x = 141,467,566.13
  5. Step 5: Solve for x
    x = 141,467,566.13/13,346.21
  6. Step 6: Final answer
    x = 10,599.83

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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.