Home / 11,368.08-15,678.36-7,386.12

Finding the Fourth Proportional to 11,368.08, 15,678.36 and 7,386.12

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Solution

The fourth proportional to 11,368.08, 15,678.36 and 7,386.12 is: 10,186.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,368.08 : 15,678.36 = 7,386.12 : x
  2. Step 2: Convert to fraction form
    11,368.08/15,678.36 = 7,386.12/x
  3. Step 3: Cross multiply
    11,368.08x = 15,678.36 × 7,386.12
  4. Step 4: Simplify right side
    11,368.08x = 115,802,248.36
  5. Step 5: Solve for x
    x = 115,802,248.36/11,368.08
  6. Step 6: Final answer
    x = 10,186.61

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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.