Home / 14,421.52-19,901.69-8,133.90

Finding the Fourth Proportional to 14,421.52, 19,901.69 and 8,133.90

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Solution

The fourth proportional to 14,421.52, 19,901.69 and 8,133.90 is: 11,224.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,421.52 : 19,901.69 = 8,133.90 : x
  2. Step 2: Convert to fraction form
    14,421.52/19,901.69 = 8,133.90/x
  3. Step 3: Cross multiply
    14,421.52x = 19,901.69 × 8,133.90
  4. Step 4: Simplify right side
    14,421.52x = 161,878,271.49
  5. Step 5: Solve for x
    x = 161,878,271.49/14,421.52
  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.