Home / 11,038.40-16,533.30-9,807.20

Finding the Fourth Proportional to 11,038.40, 16,533.30 and 9,807.20

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Solution

The fourth proportional to 11,038.40, 16,533.30 and 9,807.20 is: 14,689.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,038.40 : 16,533.30 = 9,807.20 : x
  2. Step 2: Convert to fraction form
    11,038.40/16,533.30 = 9,807.20/x
  3. Step 3: Cross multiply
    11,038.40x = 16,533.30 × 9,807.20
  4. Step 4: Simplify right side
    11,038.40x = 162,145,379.76
  5. Step 5: Solve for x
    x = 162,145,379.76/11,038.40
  6. Step 6: Final answer
    x = 14,689.21

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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.