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Finding the Fourth Proportional to 13,987.73, 19,303.06 and 7,700.11

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Solution

The fourth proportional to 13,987.73, 19,303.06 and 7,700.11 is: 10,626.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.73 : 19,303.06 = 7,700.11 : x
  2. Step 2: Convert to fraction form
    13,987.73/19,303.06 = 7,700.11/x
  3. Step 3: Cross multiply
    13,987.73x = 19,303.06 × 7,700.11
  4. Step 4: Simplify right side
    13,987.73x = 148,635,685.34
  5. Step 5: Solve for x
    x = 148,635,685.34/13,987.73
  6. Step 6: Final answer
    x = 10,626.15

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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.