Home / 13,301.69-18,359.87-7,855.53

Finding the Fourth Proportional to 13,301.69, 18,359.87 and 7,855.53

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Solution

The fourth proportional to 13,301.69, 18,359.87 and 7,855.53 is: 10,842.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,301.69 : 18,359.87 = 7,855.53 : x
  2. Step 2: Convert to fraction form
    13,301.69/18,359.87 = 7,855.53/x
  3. Step 3: Cross multiply
    13,301.69x = 18,359.87 × 7,855.53
  4. Step 4: Simplify right side
    13,301.69x = 144,226,509.58
  5. Step 5: Solve for x
    x = 144,226,509.58/13,301.69
  6. Step 6: Final answer
    x = 10,842.72

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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.