Home / 14,881.08-20,526.66-12,888.21

Finding the Fourth Proportional to 14,881.08, 20,526.66 and 12,888.21

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Solution

The fourth proportional to 14,881.08, 20,526.66 and 12,888.21 is: 17,777.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,881.08 : 20,526.66 = 12,888.21 : x
  2. Step 2: Convert to fraction form
    14,881.08/20,526.66 = 12,888.21/x
  3. Step 3: Cross multiply
    14,881.08x = 20,526.66 × 12,888.21
  4. Step 4: Simplify right side
    14,881.08x = 264,551,904.68
  5. Step 5: Solve for x
    x = 264,551,904.68/14,881.08
  6. Step 6: Final answer
    x = 17,777.74

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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.