Home / 13,875.24-20,809.13-6,472.47

Finding the Fourth Proportional to 13,875.24, 20,809.13 and 6,472.47

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Solution

The fourth proportional to 13,875.24, 20,809.13 and 6,472.47 is: 9,706.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.24 : 20,809.13 = 6,472.47 : x
  2. Step 2: Convert to fraction form
    13,875.24/20,809.13 = 6,472.47/x
  3. Step 3: Cross multiply
    13,875.24x = 20,809.13 × 6,472.47
  4. Step 4: Simplify right side
    13,875.24x = 134,686,437.29
  5. Step 5: Solve for x
    x = 134,686,437.29/13,875.24
  6. Step 6: Final answer
    x = 9,706.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.