Home / 10,603.18-15,908.96-5,671.36

Finding the Fourth Proportional to 10,603.18, 15,908.96 and 5,671.36

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Solution

The fourth proportional to 10,603.18, 15,908.96 and 5,671.36 is: 8,509.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,603.18 : 15,908.96 = 5,671.36 : x
  2. Step 2: Convert to fraction form
    10,603.18/15,908.96 = 5,671.36/x
  3. Step 3: Cross multiply
    10,603.18x = 15,908.96 × 5,671.36
  4. Step 4: Simplify right side
    10,603.18x = 90,225,439.39
  5. Step 5: Solve for x
    x = 90,225,439.39/10,603.18
  6. Step 6: Final answer
    x = 8,509.28

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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.