Home / 14,259.41-19,678.11-7,885.67

Finding the Fourth Proportional to 14,259.41, 19,678.11 and 7,885.67

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Solution

The fourth proportional to 14,259.41, 19,678.11 and 7,885.67 is: 10,882.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,259.41 : 19,678.11 = 7,885.67 : x
  2. Step 2: Convert to fraction form
    14,259.41/19,678.11 = 7,885.67/x
  3. Step 3: Cross multiply
    14,259.41x = 19,678.11 × 7,885.67
  4. Step 4: Simplify right side
    14,259.41x = 155,175,130.95
  5. Step 5: Solve for x
    x = 155,175,130.95/14,259.41
  6. Step 6: Final answer
    x = 10,882.30

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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.