Home / 13,402.02-18,482.68-8,366.70

Finding the Fourth Proportional to 13,402.02, 18,482.68 and 8,366.70

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Solution

The fourth proportional to 13,402.02, 18,482.68 and 8,366.70 is: 11,538.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,402.02 : 18,482.68 = 8,366.70 : x
  2. Step 2: Convert to fraction form
    13,402.02/18,482.68 = 8,366.70/x
  3. Step 3: Cross multiply
    13,402.02x = 18,482.68 × 8,366.70
  4. Step 4: Simplify right side
    13,402.02x = 154,638,996.92
  5. Step 5: Solve for x
    x = 154,638,996.92/13,402.02
  6. Step 6: Final answer
    x = 11,538.49

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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.