Home / 7,621.47-11,363.74-6,970.59

Finding the Fourth Proportional to 7,621.47, 11,363.74 and 6,970.59

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Solution

The fourth proportional to 7,621.47, 11,363.74 and 6,970.59 is: 10,393.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.47 : 11,363.74 = 6,970.59 : x
  2. Step 2: Convert to fraction form
    7,621.47/11,363.74 = 6,970.59/x
  3. Step 3: Cross multiply
    7,621.47x = 11,363.74 × 6,970.59
  4. Step 4: Simplify right side
    7,621.47x = 79,211,937.55
  5. Step 5: Solve for x
    x = 79,211,937.55/7,621.47
  6. Step 6: Final answer
    x = 10,393.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.