Home / 11,389.19-17,083.64-9,437.30

Finding the Fourth Proportional to 11,389.19, 17,083.64 and 9,437.30

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Solution

The fourth proportional to 11,389.19, 17,083.64 and 9,437.30 is: 14,155.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,389.19 : 17,083.64 = 9,437.30 : x
  2. Step 2: Convert to fraction form
    11,389.19/17,083.64 = 9,437.30/x
  3. Step 3: Cross multiply
    11,389.19x = 17,083.64 × 9,437.30
  4. Step 4: Simplify right side
    11,389.19x = 161,223,303.17
  5. Step 5: Solve for x
    x = 161,223,303.17/11,389.19
  6. Step 6: Final answer
    x = 14,155.82

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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.