Home / 10,070.18-15,106.81-5,137.13

Finding the Fourth Proportional to 10,070.18, 15,106.81 and 5,137.13

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Solution

The fourth proportional to 10,070.18, 15,106.81 and 5,137.13 is: 7,706.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,070.18 : 15,106.81 = 5,137.13 : x
  2. Step 2: Convert to fraction form
    10,070.18/15,106.81 = 5,137.13/x
  3. Step 3: Cross multiply
    10,070.18x = 15,106.81 × 5,137.13
  4. Step 4: Simplify right side
    10,070.18x = 77,605,653.09
  5. Step 5: Solve for x
    x = 77,605,653.09/10,070.18
  6. Step 6: Final answer
    x = 7,706.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.