Home / 10,497.50-14,486.55-5,781.77

Finding the Fourth Proportional to 10,497.50, 14,486.55 and 5,781.77

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Solution

The fourth proportional to 10,497.50, 14,486.55 and 5,781.77 is: 7,978.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,497.50 : 14,486.55 = 5,781.77 : x
  2. Step 2: Convert to fraction form
    10,497.50/14,486.55 = 5,781.77/x
  3. Step 3: Cross multiply
    10,497.50x = 14,486.55 × 5,781.77
  4. Step 4: Simplify right side
    10,497.50x = 83,757,900.19
  5. Step 5: Solve for x
    x = 83,757,900.19/10,497.50
  6. Step 6: Final answer
    x = 7,978.84

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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.