Home / 10,646.95-15,973.51-4,405.81

Finding the Fourth Proportional to 10,646.95, 15,973.51 and 4,405.81

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Solution

The fourth proportional to 10,646.95, 15,973.51 and 4,405.81 is: 6,609.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,646.95 : 15,973.51 = 4,405.81 : x
  2. Step 2: Convert to fraction form
    10,646.95/15,973.51 = 4,405.81/x
  3. Step 3: Cross multiply
    10,646.95x = 15,973.51 × 4,405.81
  4. Step 4: Simplify right side
    10,646.95x = 70,376,239.08
  5. Step 5: Solve for x
    x = 70,376,239.08/10,646.95
  6. Step 6: Final answer
    x = 6,609.99

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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.