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Finding the Fourth Proportional to 10,157.65, 14,014.87 and 6,971.92

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Solution

The fourth proportional to 10,157.65, 14,014.87 and 6,971.92 is: 9,619.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,157.65 : 14,014.87 = 6,971.92 : x
  2. Step 2: Convert to fraction form
    10,157.65/14,014.87 = 6,971.92/x
  3. Step 3: Cross multiply
    10,157.65x = 14,014.87 × 6,971.92
  4. Step 4: Simplify right side
    10,157.65x = 97,710,618.03
  5. Step 5: Solve for x
    x = 97,710,618.03/10,157.65
  6. Step 6: Final answer
    x = 9,619.41

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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.