Home / 13,465.24-18,580.80-9,930.40

Finding the Fourth Proportional to 13,465.24, 18,580.80 and 9,930.40

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Solution

The fourth proportional to 13,465.24, 18,580.80 and 9,930.40 is: 13,703.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,465.24 : 18,580.80 = 9,930.40 : x
  2. Step 2: Convert to fraction form
    13,465.24/18,580.80 = 9,930.40/x
  3. Step 3: Cross multiply
    13,465.24x = 18,580.80 × 9,930.40
  4. Step 4: Simplify right side
    13,465.24x = 184,514,776.32
  5. Step 5: Solve for x
    x = 184,514,776.32/13,465.24
  6. Step 6: Final answer
    x = 13,703.04

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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.