Home / 14,765.49-20,378.13-9,322.47

Finding the Fourth Proportional to 14,765.49, 20,378.13 and 9,322.47

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Solution

The fourth proportional to 14,765.49, 20,378.13 and 9,322.47 is: 12,866.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,765.49 : 20,378.13 = 9,322.47 : x
  2. Step 2: Convert to fraction form
    14,765.49/20,378.13 = 9,322.47/x
  3. Step 3: Cross multiply
    14,765.49x = 20,378.13 × 9,322.47
  4. Step 4: Simplify right side
    14,765.49x = 189,974,465.75
  5. Step 5: Solve for x
    x = 189,974,465.75/14,765.49
  6. Step 6: Final answer
    x = 12,866.11

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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.