Home / 7,312.32-10,089.60-4,168.32

Finding the Fourth Proportional to 7,312.32, 10,089.60 and 4,168.32

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Solution

The fourth proportional to 7,312.32, 10,089.60 and 4,168.32 is: 5,751.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,312.32 : 10,089.60 = 4,168.32 : x
  2. Step 2: Convert to fraction form
    7,312.32/10,089.60 = 4,168.32/x
  3. Step 3: Cross multiply
    7,312.32x = 10,089.60 × 4,168.32
  4. Step 4: Simplify right side
    7,312.32x = 42,056,681.47
  5. Step 5: Solve for x
    x = 42,056,681.47/7,312.32
  6. Step 6: Final answer
    x = 5,751.48

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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.