Home / 15,461.37-21,337.21-9,087.86

Finding the Fourth Proportional to 15,461.37, 21,337.21 and 9,087.86

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Solution

The fourth proportional to 15,461.37, 21,337.21 and 9,087.86 is: 12,541.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,461.37 : 21,337.21 = 9,087.86 : x
  2. Step 2: Convert to fraction form
    15,461.37/21,337.21 = 9,087.86/x
  3. Step 3: Cross multiply
    15,461.37x = 21,337.21 × 9,087.86
  4. Step 4: Simplify right side
    15,461.37x = 193,909,531.83
  5. Step 5: Solve for x
    x = 193,909,531.83/15,461.37
  6. Step 6: Final answer
    x = 12,541.55

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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.