Home / 10,377.36-14,320.48-5,661.64

Finding the Fourth Proportional to 10,377.36, 14,320.48 and 5,661.64

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Solution

The fourth proportional to 10,377.36, 14,320.48 and 5,661.64 is: 7,812.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,377.36 : 14,320.48 = 5,661.64 : x
  2. Step 2: Convert to fraction form
    10,377.36/14,320.48 = 5,661.64/x
  3. Step 3: Cross multiply
    10,377.36x = 14,320.48 × 5,661.64
  4. Step 4: Simplify right side
    10,377.36x = 81,077,402.39
  5. Step 5: Solve for x
    x = 81,077,402.39/10,377.36
  6. Step 6: Final answer
    x = 7,812.91

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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.