Home / 13,904.51-19,172.85-8,860.74

Finding the Fourth Proportional to 13,904.51, 19,172.85 and 8,860.74

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Solution

The fourth proportional to 13,904.51, 19,172.85 and 8,860.74 is: 12,218.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.51 : 19,172.85 = 8,860.74 : x
  2. Step 2: Convert to fraction form
    13,904.51/19,172.85 = 8,860.74/x
  3. Step 3: Cross multiply
    13,904.51x = 19,172.85 × 8,860.74
  4. Step 4: Simplify right side
    13,904.51x = 169,885,638.91
  5. Step 5: Solve for x
    x = 169,885,638.91/13,904.51
  6. Step 6: Final answer
    x = 12,218.02

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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.