Home / 10,902.10-16,389.60-9,298.30

Finding the Fourth Proportional to 10,902.10, 16,389.60 and 9,298.30

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Solution

The fourth proportional to 10,902.10, 16,389.60 and 9,298.30 is: 13,978.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,902.10 : 16,389.60 = 9,298.30 : x
  2. Step 2: Convert to fraction form
    10,902.10/16,389.60 = 9,298.30/x
  3. Step 3: Cross multiply
    10,902.10x = 16,389.60 × 9,298.30
  4. Step 4: Simplify right side
    10,902.10x = 152,395,417.68
  5. Step 5: Solve for x
    x = 152,395,417.68/10,902.10
  6. Step 6: Final answer
    x = 13,978.54

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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.