Home / 13,070.72-18,042.35-8,041.68

Finding the Fourth Proportional to 13,070.72, 18,042.35 and 8,041.68

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Solution

The fourth proportional to 13,070.72, 18,042.35 and 8,041.68 is: 11,100.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,070.72 : 18,042.35 = 8,041.68 : x
  2. Step 2: Convert to fraction form
    13,070.72/18,042.35 = 8,041.68/x
  3. Step 3: Cross multiply
    13,070.72x = 18,042.35 × 8,041.68
  4. Step 4: Simplify right side
    13,070.72x = 145,090,870.36
  5. Step 5: Solve for x
    x = 145,090,870.36/13,070.72
  6. Step 6: Final answer
    x = 11,100.45

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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.