Home / 7,746.80-10,688.30-4,389.55

Finding the Fourth Proportional to 7,746.80, 10,688.30 and 4,389.55

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Solution

The fourth proportional to 7,746.80, 10,688.30 and 4,389.55 is: 6,056.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,746.80 : 10,688.30 = 4,389.55 : x
  2. Step 2: Convert to fraction form
    7,746.80/10,688.30 = 4,389.55/x
  3. Step 3: Cross multiply
    7,746.80x = 10,688.30 × 4,389.55
  4. Step 4: Simplify right side
    7,746.80x = 46,916,827.27
  5. Step 5: Solve for x
    x = 46,916,827.27/7,746.80
  6. Step 6: Final answer
    x = 6,056.28

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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.