Home / 13,206.83-18,224.91-7,904.57

Finding the Fourth Proportional to 13,206.83, 18,224.91 and 7,904.57

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Solution

The fourth proportional to 13,206.83, 18,224.91 and 7,904.57 is: 10,908.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.83 : 18,224.91 = 7,904.57 : x
  2. Step 2: Convert to fraction form
    13,206.83/18,224.91 = 7,904.57/x
  3. Step 3: Cross multiply
    13,206.83x = 18,224.91 × 7,904.57
  4. Step 4: Simplify right side
    13,206.83x = 144,059,985.71
  5. Step 5: Solve for x
    x = 144,059,985.71/13,206.83
  6. Step 6: Final answer
    x = 10,908.00

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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.