Home / 10,669.12-15,999.36-6,507.52

Finding the Fourth Proportional to 10,669.12, 15,999.36 and 6,507.52

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Solution

The fourth proportional to 10,669.12, 15,999.36 and 6,507.52 is: 9,758.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,669.12 : 15,999.36 = 6,507.52 : x
  2. Step 2: Convert to fraction form
    10,669.12/15,999.36 = 6,507.52/x
  3. Step 3: Cross multiply
    10,669.12x = 15,999.36 × 6,507.52
  4. Step 4: Simplify right side
    10,669.12x = 104,116,155.19
  5. Step 5: Solve for x
    x = 104,116,155.19/10,669.12
  6. Step 6: Final answer
    x = 9,758.65

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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.