Home / 15,640.11-23,452.47-7,315.74

Finding the Fourth Proportional to 15,640.11, 23,452.47 and 7,315.74

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Solution

The fourth proportional to 15,640.11, 23,452.47 and 7,315.74 is: 10,970.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,640.11 : 23,452.47 = 7,315.74 : x
  2. Step 2: Convert to fraction form
    15,640.11/23,452.47 = 7,315.74/x
  3. Step 3: Cross multiply
    15,640.11x = 23,452.47 × 7,315.74
  4. Step 4: Simplify right side
    15,640.11x = 171,572,172.88
  5. Step 5: Solve for x
    x = 171,572,172.88/15,640.11
  6. Step 6: Final answer
    x = 10,970.01

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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.