Home / 13,513.59-18,643.39-9,030.24

Finding the Fourth Proportional to 13,513.59, 18,643.39 and 9,030.24

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Solution

The fourth proportional to 13,513.59, 18,643.39 and 9,030.24 is: 12,458.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.59 : 18,643.39 = 9,030.24 : x
  2. Step 2: Convert to fraction form
    13,513.59/18,643.39 = 9,030.24/x
  3. Step 3: Cross multiply
    13,513.59x = 18,643.39 × 9,030.24
  4. Step 4: Simplify right side
    13,513.59x = 168,354,240.96
  5. Step 5: Solve for x
    x = 168,354,240.96/13,513.59
  6. Step 6: Final answer
    x = 12,458.14

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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.