Home / 10,157.55-14,017.15-5,681.80

Finding the Fourth Proportional to 10,157.55, 14,017.15 and 5,681.80

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Solution

The fourth proportional to 10,157.55, 14,017.15 and 5,681.80 is: 7,840.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,157.55 : 14,017.15 = 5,681.80 : x
  2. Step 2: Convert to fraction form
    10,157.55/14,017.15 = 5,681.80/x
  3. Step 3: Cross multiply
    10,157.55x = 14,017.15 × 5,681.80
  4. Step 4: Simplify right side
    10,157.55x = 79,642,588.65
  5. Step 5: Solve for x
    x = 79,642,588.65/10,157.55
  6. Step 6: Final answer
    x = 7,840.73

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Half scale
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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.