Home / 10,305.02-15,457.53-5,109.68

Finding the Fourth Proportional to 10,305.02, 15,457.53 and 5,109.68

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Solution

The fourth proportional to 10,305.02, 15,457.53 and 5,109.68 is: 7,664.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,305.02 : 15,457.53 = 5,109.68 : x
  2. Step 2: Convert to fraction form
    10,305.02/15,457.53 = 5,109.68/x
  3. Step 3: Cross multiply
    10,305.02x = 15,457.53 × 5,109.68
  4. Step 4: Simplify right side
    10,305.02x = 78,983,031.89
  5. Step 5: Solve for x
    x = 78,983,031.89/10,305.02
  6. Step 6: Final answer
    x = 7,664.52

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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.