Home / 15,721.90-23,566.34-7,395.30

Finding the Fourth Proportional to 15,721.90, 23,566.34 and 7,395.30

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Solution

The fourth proportional to 15,721.90, 23,566.34 and 7,395.30 is: 11,085.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,721.90 : 23,566.34 = 7,395.30 : x
  2. Step 2: Convert to fraction form
    15,721.90/23,566.34 = 7,395.30/x
  3. Step 3: Cross multiply
    15,721.90x = 23,566.34 × 7,395.30
  4. Step 4: Simplify right side
    15,721.90x = 174,280,172.69
  5. Step 5: Solve for x
    x = 174,280,172.69/15,721.90
  6. Step 6: Final answer
    x = 11,085.19

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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.