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Finding the Fourth Proportional to 10,012.40, 15,009.40 and 3,437.08

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Solution

The fourth proportional to 10,012.40, 15,009.40 and 3,437.08 is: 5,152.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,012.40 : 15,009.40 = 3,437.08 : x
  2. Step 2: Convert to fraction form
    10,012.40/15,009.40 = 3,437.08/x
  3. Step 3: Cross multiply
    10,012.40x = 15,009.40 × 3,437.08
  4. Step 4: Simplify right side
    10,012.40x = 51,588,508.55
  5. Step 5: Solve for x
    x = 51,588,508.55/10,012.40
  6. Step 6: Final answer
    x = 5,152.46

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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.