Home / 11,133.22-15,356.46-7,159.36

Finding the Fourth Proportional to 11,133.22, 15,356.46 and 7,159.36

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Solution

The fourth proportional to 11,133.22, 15,356.46 and 7,159.36 is: 9,875.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.22 : 15,356.46 = 7,159.36 : x
  2. Step 2: Convert to fraction form
    11,133.22/15,356.46 = 7,159.36/x
  3. Step 3: Cross multiply
    11,133.22x = 15,356.46 × 7,159.36
  4. Step 4: Simplify right side
    11,133.22x = 109,942,417.81
  5. Step 5: Solve for x
    x = 109,942,417.81/11,133.22
  6. Step 6: Final answer
    x = 9,875.17

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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.