Home / 15,292.34-21,099.93-8,577.71

Finding the Fourth Proportional to 15,292.34, 21,099.93 and 8,577.71

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Solution

The fourth proportional to 15,292.34, 21,099.93 and 8,577.71 is: 11,835.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,292.34 : 21,099.93 = 8,577.71 : x
  2. Step 2: Convert to fraction form
    15,292.34/21,099.93 = 8,577.71/x
  3. Step 3: Cross multiply
    15,292.34x = 21,099.93 × 8,577.71
  4. Step 4: Simplify right side
    15,292.34x = 180,989,080.56
  5. Step 5: Solve for x
    x = 180,989,080.56/15,292.34
  6. Step 6: Final answer
    x = 11,835.28

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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.