Home / 10,521.68-14,518.90-5,805.66

Finding the Fourth Proportional to 10,521.68, 14,518.90 and 5,805.66

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Solution

The fourth proportional to 10,521.68, 14,518.90 and 5,805.66 is: 8,011.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,521.68 : 14,518.90 = 5,805.66 : x
  2. Step 2: Convert to fraction form
    10,521.68/14,518.90 = 5,805.66/x
  3. Step 3: Cross multiply
    10,521.68x = 14,518.90 × 5,805.66
  4. Step 4: Simplify right side
    10,521.68x = 84,291,796.97
  5. Step 5: Solve for x
    x = 84,291,796.97/10,521.68
  6. Step 6: Final answer
    x = 8,011.25

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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.