Home / 14,352.91-19,807.46-8,688.70

Finding the Fourth Proportional to 14,352.91, 19,807.46 and 8,688.70

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Solution

The fourth proportional to 14,352.91, 19,807.46 and 8,688.70 is: 11,990.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,352.91 : 19,807.46 = 8,688.70 : x
  2. Step 2: Convert to fraction form
    14,352.91/19,807.46 = 8,688.70/x
  3. Step 3: Cross multiply
    14,352.91x = 19,807.46 × 8,688.70
  4. Step 4: Simplify right side
    14,352.91x = 172,101,077.70
  5. Step 5: Solve for x
    x = 172,101,077.70/14,352.91
  6. Step 6: Final answer
    x = 11,990.67

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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.