Home / 15,808.50-23,712.84-5,420.34

Finding the Fourth Proportional to 15,808.50, 23,712.84 and 5,420.34

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Solution

The fourth proportional to 15,808.50, 23,712.84 and 5,420.34 is: 8,130.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,808.50 : 23,712.84 = 5,420.34 : x
  2. Step 2: Convert to fraction form
    15,808.50/23,712.84 = 5,420.34/x
  3. Step 3: Cross multiply
    15,808.50x = 23,712.84 × 5,420.34
  4. Step 4: Simplify right side
    15,808.50x = 128,531,655.17
  5. Step 5: Solve for x
    x = 128,531,655.17/15,808.50
  6. Step 6: Final answer
    x = 8,130.54

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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.