Home / 15,806.18-23,709.08-9,138.43

Finding the Fourth Proportional to 15,806.18, 23,709.08 and 9,138.43

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Solution

The fourth proportional to 15,806.18, 23,709.08 and 9,138.43 is: 13,707.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,806.18 : 23,709.08 = 9,138.43 : x
  2. Step 2: Convert to fraction form
    15,806.18/23,709.08 = 9,138.43/x
  3. Step 3: Cross multiply
    15,806.18x = 23,709.08 × 9,138.43
  4. Step 4: Simplify right side
    15,806.18x = 216,663,649.40
  5. Step 5: Solve for x
    x = 216,663,649.40/15,806.18
  6. Step 6: Final answer
    x = 13,707.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.