Home / 13,988.08-19,303.68-7,700.56

Finding the Fourth Proportional to 13,988.08, 19,303.68 and 7,700.56

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Solution

The fourth proportional to 13,988.08, 19,303.68 and 7,700.56 is: 10,626.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.08 : 19,303.68 = 7,700.56 : x
  2. Step 2: Convert to fraction form
    13,988.08/19,303.68 = 7,700.56/x
  3. Step 3: Cross multiply
    13,988.08x = 19,303.68 × 7,700.56
  4. Step 4: Simplify right side
    13,988.08x = 148,649,146.06
  5. Step 5: Solve for x
    x = 148,649,146.06/13,988.08
  6. Step 6: Final answer
    x = 10,626.84

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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.