Home / 13,867.08-19,129.32-9,392.40

Finding the Fourth Proportional to 13,867.08, 19,129.32 and 9,392.40

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Solution

The fourth proportional to 13,867.08, 19,129.32 and 9,392.40 is: 12,956.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.08 : 19,129.32 = 9,392.40 : x
  2. Step 2: Convert to fraction form
    13,867.08/19,129.32 = 9,392.40/x
  3. Step 3: Cross multiply
    13,867.08x = 19,129.32 × 9,392.40
  4. Step 4: Simplify right side
    13,867.08x = 179,670,225.17
  5. Step 5: Solve for x
    x = 179,670,225.17/13,867.08
  6. Step 6: Final answer
    x = 12,956.60

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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.