Home / 15,444.92-21,313.80-8,730.40

Finding the Fourth Proportional to 15,444.92, 21,313.80 and 8,730.40

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Solution

The fourth proportional to 15,444.92, 21,313.80 and 8,730.40 is: 12,047.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,444.92 : 21,313.80 = 8,730.40 : x
  2. Step 2: Convert to fraction form
    15,444.92/21,313.80 = 8,730.40/x
  3. Step 3: Cross multiply
    15,444.92x = 21,313.80 × 8,730.40
  4. Step 4: Simplify right side
    15,444.92x = 186,077,999.52
  5. Step 5: Solve for x
    x = 186,077,999.52/15,444.92
  6. Step 6: Final answer
    x = 12,047.84

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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.