Home / 10,328.64-15,406.94-9,332.08

Finding the Fourth Proportional to 10,328.64, 15,406.94 and 9,332.08

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Solution

The fourth proportional to 10,328.64, 15,406.94 and 9,332.08 is: 13,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,328.64 : 15,406.94 = 9,332.08 : x
  2. Step 2: Convert to fraction form
    10,328.64/15,406.94 = 9,332.08/x
  3. Step 3: Cross multiply
    10,328.64x = 15,406.94 × 9,332.08
  4. Step 4: Simplify right side
    10,328.64x = 143,778,796.64
  5. Step 5: Solve for x
    x = 143,778,796.64/10,328.64
  6. Step 6: Final answer
    x = 13,920.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.