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Finding the Fourth Proportional to 9,869.93, 14,807.63 and 5,490.46

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Solution

The fourth proportional to 9,869.93, 14,807.63 and 5,490.46 is: 8,237.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,869.93 : 14,807.63 = 5,490.46 : x
  2. Step 2: Convert to fraction form
    9,869.93/14,807.63 = 5,490.46/x
  3. Step 3: Cross multiply
    9,869.93x = 14,807.63 × 5,490.46
  4. Step 4: Simplify right side
    9,869.93x = 81,300,700.21
  5. Step 5: Solve for x
    x = 81,300,700.21/9,869.93
  6. Step 6: Final answer
    x = 8,237.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.