Home / 10,521.39-14,518.80-5,805.75

Finding the Fourth Proportional to 10,521.39, 14,518.80 and 5,805.75

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Solution

The fourth proportional to 10,521.39, 14,518.80 and 5,805.75 is: 8,011.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,521.39 : 14,518.80 = 5,805.75 : x
  2. Step 2: Convert to fraction form
    10,521.39/14,518.80 = 5,805.75/x
  3. Step 3: Cross multiply
    10,521.39x = 14,518.80 × 5,805.75
  4. Step 4: Simplify right side
    10,521.39x = 84,292,523.10
  5. Step 5: Solve for x
    x = 84,292,523.10/10,521.39
  6. Step 6: Final answer
    x = 8,011.54

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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.