Home / 14,421.15-19,901.17-8,133.53

Finding the Fourth Proportional to 14,421.15, 19,901.17 and 8,133.53

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Solution

The fourth proportional to 14,421.15, 19,901.17 and 8,133.53 is: 11,224.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,421.15 : 19,901.17 = 8,133.53 : x
  2. Step 2: Convert to fraction form
    14,421.15/19,901.17 = 8,133.53/x
  3. Step 3: Cross multiply
    14,421.15x = 19,901.17 × 8,133.53
  4. Step 4: Simplify right side
    14,421.15x = 161,866,643.39
  5. Step 5: Solve for x
    x = 161,866,643.39/14,421.15
  6. Step 6: Final answer
    x = 11,224.25

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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.