Home / 15,420-23,113.16-7,913.06

Finding the Fourth Proportional to 15,420, 23,113.16 and 7,913.06

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Solution

The fourth proportional to 15,420, 23,113.16 and 7,913.06 is: 11,860.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420 : 23,113.16 = 7,913.06 : x
  2. Step 2: Convert to fraction form
    15,420/23,113.16 = 7,913.06/x
  3. Step 3: Cross multiply
    15,420x = 23,113.16 × 7,913.06
  4. Step 4: Simplify right side
    15,420x = 182,895,821.87
  5. Step 5: Solve for x
    x = 182,895,821.87/15,420
  6. Step 6: Final answer
    x = 11,860.95

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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.