Home / 9,429.81-14,145.40-2,856.51

Finding the Fourth Proportional to 9,429.81, 14,145.40 and 2,856.51

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Solution

The fourth proportional to 9,429.81, 14,145.40 and 2,856.51 is: 4,284.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,429.81 : 14,145.40 = 2,856.51 : x
  2. Step 2: Convert to fraction form
    9,429.81/14,145.40 = 2,856.51/x
  3. Step 3: Cross multiply
    9,429.81x = 14,145.40 × 2,856.51
  4. Step 4: Simplify right side
    9,429.81x = 40,406,476.55
  5. Step 5: Solve for x
    x = 40,406,476.55/9,429.81
  6. Step 6: Final answer
    x = 4,284.97

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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.