Home / 10,136.12-13,988.14-5,659.80

Finding the Fourth Proportional to 10,136.12, 13,988.14 and 5,659.80

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Solution

The fourth proportional to 10,136.12, 13,988.14 and 5,659.80 is: 7,810.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,136.12 : 13,988.14 = 5,659.80 : x
  2. Step 2: Convert to fraction form
    10,136.12/13,988.14 = 5,659.80/x
  3. Step 3: Cross multiply
    10,136.12x = 13,988.14 × 5,659.80
  4. Step 4: Simplify right side
    10,136.12x = 79,170,074.77
  5. Step 5: Solve for x
    x = 79,170,074.77/10,136.12
  6. Step 6: Final answer
    x = 7,810.69

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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.