Home / 13,328.08-18,392.76-7,359.76

Finding the Fourth Proportional to 13,328.08, 18,392.76 and 7,359.76

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Solution

The fourth proportional to 13,328.08, 18,392.76 and 7,359.76 is: 10,156.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.08 : 18,392.76 = 7,359.76 : x
  2. Step 2: Convert to fraction form
    13,328.08/18,392.76 = 7,359.76/x
  3. Step 3: Cross multiply
    13,328.08x = 18,392.76 × 7,359.76
  4. Step 4: Simplify right side
    13,328.08x = 135,366,299.34
  5. Step 5: Solve for x
    x = 135,366,299.34/13,328.08
  6. Step 6: Final answer
    x = 10,156.47

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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.