Home / 13,055.04-18,003.60-8,570.88

Finding the Fourth Proportional to 13,055.04, 18,003.60 and 8,570.88

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Solution

The fourth proportional to 13,055.04, 18,003.60 and 8,570.88 is: 11,819.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,055.04 : 18,003.60 = 8,570.88 : x
  2. Step 2: Convert to fraction form
    13,055.04/18,003.60 = 8,570.88/x
  3. Step 3: Cross multiply
    13,055.04x = 18,003.60 × 8,570.88
  4. Step 4: Simplify right side
    13,055.04x = 154,306,695.17
  5. Step 5: Solve for x
    x = 154,306,695.17/13,055.04
  6. Step 6: Final answer
    x = 11,819.70

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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.