Home / 15,444.77-21,313.55-8,730.16

Finding the Fourth Proportional to 15,444.77, 21,313.55 and 8,730.16

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Solution

The fourth proportional to 15,444.77, 21,313.55 and 8,730.16 is: 12,047.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,444.77 : 21,313.55 = 8,730.16 : x
  2. Step 2: Convert to fraction form
    15,444.77/21,313.55 = 8,730.16/x
  3. Step 3: Cross multiply
    15,444.77x = 21,313.55 × 8,730.16
  4. Step 4: Simplify right side
    15,444.77x = 186,070,776.78
  5. Step 5: Solve for x
    x = 186,070,776.78/15,444.77
  6. Step 6: Final answer
    x = 12,047.49

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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.