Home / 7,615.53-10,510.65-4,471.70

Finding the Fourth Proportional to 7,615.53, 10,510.65 and 4,471.70

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Solution

The fourth proportional to 7,615.53, 10,510.65 and 4,471.70 is: 6,171.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.53 : 10,510.65 = 4,471.70 : x
  2. Step 2: Convert to fraction form
    7,615.53/10,510.65 = 4,471.70/x
  3. Step 3: Cross multiply
    7,615.53x = 10,510.65 × 4,471.70
  4. Step 4: Simplify right side
    7,615.53x = 47,000,421.05
  5. Step 5: Solve for x
    x = 47,000,421.05/7,615.53
  6. Step 6: Final answer
    x = 6,171.65

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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.