Home / 15,421.20-23,117.63-5,558.07

Finding the Fourth Proportional to 15,421.20, 23,117.63 and 5,558.07

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Solution

The fourth proportional to 15,421.20, 23,117.63 and 5,558.07 is: 8,331.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,421.20 : 23,117.63 = 5,558.07 : x
  2. Step 2: Convert to fraction form
    15,421.20/23,117.63 = 5,558.07/x
  3. Step 3: Cross multiply
    15,421.20x = 23,117.63 × 5,558.07
  4. Step 4: Simplify right side
    15,421.20x = 128,489,262.40
  5. Step 5: Solve for x
    x = 128,489,262.40/15,421.20
  6. Step 6: Final answer
    x = 8,331.99

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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.