Home / 10,881.36-15,012.81-6,632.10

Finding the Fourth Proportional to 10,881.36, 15,012.81 and 6,632.10

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Solution

The fourth proportional to 10,881.36, 15,012.81 and 6,632.10 is: 9,150.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,881.36 : 15,012.81 = 6,632.10 : x
  2. Step 2: Convert to fraction form
    10,881.36/15,012.81 = 6,632.10/x
  3. Step 3: Cross multiply
    10,881.36x = 15,012.81 × 6,632.10
  4. Step 4: Simplify right side
    10,881.36x = 99,566,457.20
  5. Step 5: Solve for x
    x = 99,566,457.20/10,881.36
  6. Step 6: Final answer
    x = 9,150.19

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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.