Home / 10,322.95-14,231.86-8,205.51

Finding the Fourth Proportional to 10,322.95, 14,231.86 and 8,205.51

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Solution

The fourth proportional to 10,322.95, 14,231.86 and 8,205.51 is: 11,312.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,322.95 : 14,231.86 = 8,205.51 : x
  2. Step 2: Convert to fraction form
    10,322.95/14,231.86 = 8,205.51/x
  3. Step 3: Cross multiply
    10,322.95x = 14,231.86 × 8,205.51
  4. Step 4: Simplify right side
    10,322.95x = 116,779,669.55
  5. Step 5: Solve for x
    x = 116,779,669.55/10,322.95
  6. Step 6: Final answer
    x = 11,312.63

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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.