Home / 13,932.01-19,225.84-7,715.87

Finding the Fourth Proportional to 13,932.01, 19,225.84 and 7,715.87

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Solution

The fourth proportional to 13,932.01, 19,225.84 and 7,715.87 is: 10,647.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.01 : 19,225.84 = 7,715.87 : x
  2. Step 2: Convert to fraction form
    13,932.01/19,225.84 = 7,715.87/x
  3. Step 3: Cross multiply
    13,932.01x = 19,225.84 × 7,715.87
  4. Step 4: Simplify right side
    13,932.01x = 148,344,094.40
  5. Step 5: Solve for x
    x = 148,344,094.40/13,932.01
  6. Step 6: Final answer
    x = 10,647.72

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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.