Home / 14,000.31-19,320.48-7,712.67

Finding the Fourth Proportional to 14,000.31, 19,320.48 and 7,712.67

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Solution

The fourth proportional to 14,000.31, 19,320.48 and 7,712.67 is: 10,643.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,000.31 : 19,320.48 = 7,712.67 : x
  2. Step 2: Convert to fraction form
    14,000.31/19,320.48 = 7,712.67/x
  3. Step 3: Cross multiply
    14,000.31x = 19,320.48 × 7,712.67
  4. Step 4: Simplify right side
    14,000.31x = 149,012,486.48
  5. Step 5: Solve for x
    x = 149,012,486.48/14,000.31
  6. Step 6: Final answer
    x = 10,643.51

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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.