Home / 10,218.48-14,101.08-5,680.98

Finding the Fourth Proportional to 10,218.48, 14,101.08 and 5,680.98

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Solution

The fourth proportional to 10,218.48, 14,101.08 and 5,680.98 is: 7,839.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.48 : 14,101.08 = 5,680.98 : x
  2. Step 2: Convert to fraction form
    10,218.48/14,101.08 = 5,680.98/x
  3. Step 3: Cross multiply
    10,218.48x = 14,101.08 × 5,680.98
  4. Step 4: Simplify right side
    10,218.48x = 80,107,953.46
  5. Step 5: Solve for x
    x = 80,107,953.46/10,218.48
  6. Step 6: Final answer
    x = 7,839.52

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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.