Home / 14,421.51-19,901.70-8,133.89

Finding the Fourth Proportional to 14,421.51, 19,901.70 and 8,133.89

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Solution

The fourth proportional to 14,421.51, 19,901.70 and 8,133.89 is: 11,224.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,421.51 : 19,901.70 = 8,133.89 : x
  2. Step 2: Convert to fraction form
    14,421.51/19,901.70 = 8,133.89/x
  3. Step 3: Cross multiply
    14,421.51x = 19,901.70 × 8,133.89
  4. Step 4: Simplify right side
    14,421.51x = 161,878,139.10
  5. Step 5: Solve for x
    x = 161,878,139.10/14,421.51
  6. Step 6: Final answer
    x = 11,224.77

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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.