Home / 13,058.08-18,023.28-7,472.32

Finding the Fourth Proportional to 13,058.08, 18,023.28 and 7,472.32

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Solution

The fourth proportional to 13,058.08, 18,023.28 and 7,472.32 is: 10,313.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,058.08 : 18,023.28 = 7,472.32 : x
  2. Step 2: Convert to fraction form
    13,058.08/18,023.28 = 7,472.32/x
  3. Step 3: Cross multiply
    13,058.08x = 18,023.28 × 7,472.32
  4. Step 4: Simplify right side
    13,058.08x = 134,675,715.61
  5. Step 5: Solve for x
    x = 134,675,715.61/13,058.08
  6. Step 6: Final answer
    x = 10,313.59

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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.