Home / 11,127.47-15,356.64-6,412.05

Finding the Fourth Proportional to 11,127.47, 15,356.64 and 6,412.05

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Solution

The fourth proportional to 11,127.47, 15,356.64 and 6,412.05 is: 8,849.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.47 : 15,356.64 = 6,412.05 : x
  2. Step 2: Convert to fraction form
    11,127.47/15,356.64 = 6,412.05/x
  3. Step 3: Cross multiply
    11,127.47x = 15,356.64 × 6,412.05
  4. Step 4: Simplify right side
    11,127.47x = 98,467,543.51
  5. Step 5: Solve for x
    x = 98,467,543.51/11,127.47
  6. Step 6: Final answer
    x = 8,849.05

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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.