Home / 7,688.12-10,607.29-4,700.80

Finding the Fourth Proportional to 7,688.12, 10,607.29 and 4,700.80

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Solution

The fourth proportional to 7,688.12, 10,607.29 and 4,700.80 is: 6,485.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,688.12 : 10,607.29 = 4,700.80 : x
  2. Step 2: Convert to fraction form
    7,688.12/10,607.29 = 4,700.80/x
  3. Step 3: Cross multiply
    7,688.12x = 10,607.29 × 4,700.80
  4. Step 4: Simplify right side
    7,688.12x = 49,862,750.34
  5. Step 5: Solve for x
    x = 49,862,750.34/7,688.12
  6. Step 6: Final answer
    x = 6,485.69

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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.