Home / 10,011.51-15,017.67-3,438.36

Finding the Fourth Proportional to 10,011.51, 15,017.67 and 3,438.36

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Solution

The fourth proportional to 10,011.51, 15,017.67 and 3,438.36 is: 5,157.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,011.51 : 15,017.67 = 3,438.36 : x
  2. Step 2: Convert to fraction form
    10,011.51/15,017.67 = 3,438.36/x
  3. Step 3: Cross multiply
    10,011.51x = 15,017.67 × 3,438.36
  4. Step 4: Simplify right side
    10,011.51x = 51,636,155.82
  5. Step 5: Solve for x
    x = 51,636,155.82/10,011.51
  6. Step 6: Final answer
    x = 5,157.68

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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.