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Finding the Fourth Proportional to 13,060.68, 18,017.35 and 7,751.74

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Solution

The fourth proportional to 13,060.68, 18,017.35 and 7,751.74 is: 10,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,060.68 : 18,017.35 = 7,751.74 : x
  2. Step 2: Convert to fraction form
    13,060.68/18,017.35 = 7,751.74/x
  3. Step 3: Cross multiply
    13,060.68x = 18,017.35 × 7,751.74
  4. Step 4: Simplify right side
    13,060.68x = 139,665,748.27
  5. Step 5: Solve for x
    x = 139,665,748.27/13,060.68
  6. Step 6: Final answer
    x = 10,693.60

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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.