Home / 11,507.06-15,875.70-7,530.50

Finding the Fourth Proportional to 11,507.06, 15,875.70 and 7,530.50

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Solution

The fourth proportional to 11,507.06, 15,875.70 and 7,530.50 is: 10,389.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,507.06 : 15,875.70 = 7,530.50 : x
  2. Step 2: Convert to fraction form
    11,507.06/15,875.70 = 7,530.50/x
  3. Step 3: Cross multiply
    11,507.06x = 15,875.70 × 7,530.50
  4. Step 4: Simplify right side
    11,507.06x = 119,551,958.85
  5. Step 5: Solve for x
    x = 119,551,958.85/11,507.06
  6. Step 6: Final answer
    x = 10,389.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.