Home / 13,312.95-18,371.87-7,344.63

Finding the Fourth Proportional to 13,312.95, 18,371.87 and 7,344.63

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Solution

The fourth proportional to 13,312.95, 18,371.87 and 7,344.63 is: 10,135.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.95 : 18,371.87 = 7,344.63 : x
  2. Step 2: Convert to fraction form
    13,312.95/18,371.87 = 7,344.63/x
  3. Step 3: Cross multiply
    13,312.95x = 18,371.87 × 7,344.63
  4. Step 4: Simplify right side
    13,312.95x = 134,934,651.85
  5. Step 5: Solve for x
    x = 134,934,651.85/13,312.95
  6. Step 6: Final answer
    x = 10,135.59

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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.