Home / 14,009.40-19,320.21-9,285.48

Finding the Fourth Proportional to 14,009.40, 19,320.21 and 9,285.48

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Solution

The fourth proportional to 14,009.40, 19,320.21 and 9,285.48 is: 12,805.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,009.40 : 19,320.21 = 9,285.48 : x
  2. Step 2: Convert to fraction form
    14,009.40/19,320.21 = 9,285.48/x
  3. Step 3: Cross multiply
    14,009.40x = 19,320.21 × 9,285.48
  4. Step 4: Simplify right side
    14,009.40x = 179,397,423.55
  5. Step 5: Solve for x
    x = 179,397,423.55/14,009.40
  6. Step 6: Final answer
    x = 12,805.50

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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.