Home / 7,669.51-10,587.49-5,781.86

Finding the Fourth Proportional to 7,669.51, 10,587.49 and 5,781.86

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Solution

The fourth proportional to 7,669.51, 10,587.49 and 5,781.86 is: 7,981.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,669.51 : 10,587.49 = 5,781.86 : x
  2. Step 2: Convert to fraction form
    7,669.51/10,587.49 = 5,781.86/x
  3. Step 3: Cross multiply
    7,669.51x = 10,587.49 × 5,781.86
  4. Step 4: Simplify right side
    7,669.51x = 61,215,384.93
  5. Step 5: Solve for x
    x = 61,215,384.93/7,669.51
  6. Step 6: Final answer
    x = 7,981.66

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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.