Home / 10,419.12-15,623.95-4,493.20

Finding the Fourth Proportional to 10,419.12, 15,623.95 and 4,493.20

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Solution

The fourth proportional to 10,419.12, 15,623.95 and 4,493.20 is: 6,737.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,419.12 : 15,623.95 = 4,493.20 : x
  2. Step 2: Convert to fraction form
    10,419.12/15,623.95 = 4,493.20/x
  3. Step 3: Cross multiply
    10,419.12x = 15,623.95 × 4,493.20
  4. Step 4: Simplify right side
    10,419.12x = 70,201,580.81
  5. Step 5: Solve for x
    x = 70,201,580.81/10,419.12
  6. Step 6: Final answer
    x = 6,737.77

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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.