Home / 6,445.24-8,886.72-5,384.55

Finding the Fourth Proportional to 6,445.24, 8,886.72 and 5,384.55

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Solution

The fourth proportional to 6,445.24, 8,886.72 and 5,384.55 is: 7,424.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,445.24 : 8,886.72 = 5,384.55 : x
  2. Step 2: Convert to fraction form
    6,445.24/8,886.72 = 5,384.55/x
  3. Step 3: Cross multiply
    6,445.24x = 8,886.72 × 5,384.55
  4. Step 4: Simplify right side
    6,445.24x = 47,850,988.18
  5. Step 5: Solve for x
    x = 47,850,988.18/6,445.24
  6. Step 6: Final answer
    x = 7,424.24

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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.