Home / 10,812.96-14,918.76-7,041.66

Finding the Fourth Proportional to 10,812.96, 14,918.76 and 7,041.66

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Solution

The fourth proportional to 10,812.96, 14,918.76 and 7,041.66 is: 9,715.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,812.96 : 14,918.76 = 7,041.66 : x
  2. Step 2: Convert to fraction form
    10,812.96/14,918.76 = 7,041.66/x
  3. Step 3: Cross multiply
    10,812.96x = 14,918.76 × 7,041.66
  4. Step 4: Simplify right side
    10,812.96x = 105,052,835.54
  5. Step 5: Solve for x
    x = 105,052,835.54/10,812.96
  6. Step 6: Final answer
    x = 9,715.46

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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.