Home / 13,966.61-19,274.87-7,678.98

Finding the Fourth Proportional to 13,966.61, 19,274.87 and 7,678.98

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Solution

The fourth proportional to 13,966.61, 19,274.87 and 7,678.98 is: 10,597.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,966.61 : 19,274.87 = 7,678.98 : x
  2. Step 2: Convert to fraction form
    13,966.61/19,274.87 = 7,678.98/x
  3. Step 3: Cross multiply
    13,966.61x = 19,274.87 × 7,678.98
  4. Step 4: Simplify right side
    13,966.61x = 148,011,360.43
  5. Step 5: Solve for x
    x = 148,011,360.43/13,966.61
  6. Step 6: Final answer
    x = 10,597.52

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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.