Home / 10,003.18-15,005.13-7,667.45

Finding the Fourth Proportional to 10,003.18, 15,005.13 and 7,667.45

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Solution

The fourth proportional to 10,003.18, 15,005.13 and 7,667.45 is: 11,501.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,003.18 : 15,005.13 = 7,667.45 : x
  2. Step 2: Convert to fraction form
    10,003.18/15,005.13 = 7,667.45/x
  3. Step 3: Cross multiply
    10,003.18x = 15,005.13 × 7,667.45
  4. Step 4: Simplify right side
    10,003.18x = 115,051,084.02
  5. Step 5: Solve for x
    x = 115,051,084.02/10,003.18
  6. Step 6: Final answer
    x = 11,501.45

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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.