Home / 15,421.29-23,118.04-5,553.63

Finding the Fourth Proportional to 15,421.29, 23,118.04 and 5,553.63

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Solution

The fourth proportional to 15,421.29, 23,118.04 and 5,553.63 is: 8,325.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,421.29 : 23,118.04 = 5,553.63 : x
  2. Step 2: Convert to fraction form
    15,421.29/23,118.04 = 5,553.63/x
  3. Step 3: Cross multiply
    15,421.29x = 23,118.04 × 5,553.63
  4. Step 4: Simplify right side
    15,421.29x = 128,389,040.49
  5. Step 5: Solve for x
    x = 128,389,040.49/15,421.29
  6. Step 6: Final answer
    x = 8,325.44

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Double scale
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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.