Home / 18,136.32-25,029.42-10,070.40

Finding the Fourth Proportional to 18,136.32, 25,029.42 and 10,070.40

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Solution

The fourth proportional to 18,136.32, 25,029.42 and 10,070.40 is: 13,897.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,136.32 : 25,029.42 = 10,070.40 : x
  2. Step 2: Convert to fraction form
    18,136.32/25,029.42 = 10,070.40/x
  3. Step 3: Cross multiply
    18,136.32x = 25,029.42 × 10,070.40
  4. Step 4: Simplify right side
    18,136.32x = 252,056,271.17
  5. Step 5: Solve for x
    x = 252,056,271.17/18,136.32
  6. Step 6: Final answer
    x = 13,897.87

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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.