Home / 13,359.08-18,435.98-7,695.68

Finding the Fourth Proportional to 13,359.08, 18,435.98 and 7,695.68

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Solution

The fourth proportional to 13,359.08, 18,435.98 and 7,695.68 is: 10,620.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.08 : 18,435.98 = 7,695.68 : x
  2. Step 2: Convert to fraction form
    13,359.08/18,435.98 = 7,695.68/x
  3. Step 3: Cross multiply
    13,359.08x = 18,435.98 × 7,695.68
  4. Step 4: Simplify right side
    13,359.08x = 141,877,329.63
  5. Step 5: Solve for x
    x = 141,877,329.63/13,359.08
  6. Step 6: Final answer
    x = 10,620.29

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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.