Home / 10,003.64-15,011.40-4,457.30

Finding the Fourth Proportional to 10,003.64, 15,011.40 and 4,457.30

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Solution

The fourth proportional to 10,003.64, 15,011.40 and 4,457.30 is: 6,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,003.64 : 15,011.40 = 4,457.30 : x
  2. Step 2: Convert to fraction form
    10,003.64/15,011.40 = 4,457.30/x
  3. Step 3: Cross multiply
    10,003.64x = 15,011.40 × 4,457.30
  4. Step 4: Simplify right side
    10,003.64x = 66,910,313.22
  5. Step 5: Solve for x
    x = 66,910,313.22/10,003.64
  6. Step 6: Final answer
    x = 6,688.60

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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.